jquery.nicescroll/jquery.nicescroll.js

/* jquery.nicescroll
-- version 3.1.0
-- copyright 2011-12 InuYaksa*2012
-- licensed under the MIT
--
-- http://areaaperta.com/nicescroll
-- https://github.com/inuyaksa/jquery.nicescroll
--
*/

(function(jQuery){

  // globals
  var domfocus = false;
  var mousefocus = false;
  var zoomactive = false;
  var tabindexcounter = 5000;
  var ascrailcounter = 2000;
  
  var $ = jQuery;  // sandbox
 
  // http://stackoverflow.com/questions/2161159/get-script-path
  function getScriptPath() {
    var scripts=document.getElementsByTagName('script');
    var path=scripts[scripts.length-1].src.split('?')[0];
    return (path.split('/').length>0) ? path.split('/').slice(0,-1).join('/')+'/' : '';
  }
  var scriptpath = getScriptPath();

  // derived by http://blog.joelambert.co.uk/2011/06/01/a-better-settimeoutsetinterval/
  var setAnimationFrame = (function(){
    return  window.requestAnimationFrame       || 
            window.webkitRequestAnimationFrame || 
            window.mozRequestAnimationFrame    || 
            window.oRequestAnimationFrame      || 
            window.msRequestAnimationFrame     || 
            false;
  })();
  var clearAnimationFrame = (function(){
    return  window.cancelRequestAnimationFrame       || 
            window.webkitCancelRequestAnimationFrame || 
            window.mozCancelRequestAnimationFrame    || 
            window.oCancelRequestAnimationFrame      || 
            window.msCancelRequestAnimationFrame     || 
            false;
  })();  
  
  var browserdetected = false;
  
  var getBrowserDetection = function() {
  
    if (browserdetected) return browserdetected;
  
    var domtest = document.createElement('DIV');

    var d = {};
    
		d.haspointerlock = "pointerLockElement" in document || "mozPointerLockElement" in document || "webkitPointerLockElement" in document;
		
    d.isopera = ("opera" in window);
    d.isopera12 = (d.isopera&&("getUserMedia" in navigator));
    
    d.isie = (("all" in document) && ("attachEvent" in domtest) && !d.isopera);
    d.isieold = (d.isie && !("msInterpolationMode" in domtest.style));  // IE6 and older
    d.isie7 = d.isie&&!d.isieold&&(!("documentMode" in document)||(document.documentMode==7));
    d.isie8 = d.isie&&("documentMode" in document)&&(document.documentMode==8);
    d.isie9 = d.isie&&("performance" in window)&&(document.documentMode>=9);
    d.isie10 = d.isie&&("performance" in window)&&(document.documentMode>=10);
    
    d.isie9mobile = /iemobile.9/i.test(navigator.userAgent);  //wp 7.1 mango
    if (d.isie9mobile) d.isie9 = false;
    d.isie7mobile = (!d.isie9mobile&&d.isie7) && /iemobile/i.test(navigator.userAgent);  //wp 7.0
    
    d.ismozilla = ("MozAppearance" in domtest.style);
		
    d.iswebkit = ("WebkitAppearance" in domtest.style);
    
    d.ischrome = ("chrome" in window);
		d.ischrome22 = (d.ischrome&&d.haspointerlock);
    
    d.cantouch = ("ontouchstart" in document.documentElement)||("ontouchstart" in window);  // detection for Chrome Touch Emulation
    d.hasmstouch = (window.navigator.msPointerEnabled||false);  // IE10+ pointer events
		
    d.ismac = /^mac$/i.test(navigator.platform);
    
    d.isios = (d.cantouch && /iphone|ipad|ipod/i.test(navigator.platform));
    d.isios4 = ((d.isios)&&!("seal" in Object));
    
    d.isandroid = (/android/i.test(navigator.userAgent));
    
    d.trstyle = false;
    d.hastransform = false;
    d.hastranslate3d = false;
    d.transitionstyle = false;
    d.hastransition = false;
    d.transitionend = false;
    
    var check = ['transform','msTransform','webkitTransform','MozTransform','OTransform'];
    for(var a=0;a<check.length;a++){
      if (typeof domtest.style[check[a]] != "undefined") {
        d.trstyle = check[a];
        break;
      }
    }
    d.hastransform = (d.trstyle != false);
    if (d.hastransform) {
      domtest.style[d.trstyle] = "translate3d(1px,2px,3px)";
      d.hastranslate3d = /translate3d/.test(domtest.style[d.trstyle]);
    }
    
    d.transitionstyle = false;
    d.prefixstyle = '';
    d.transitionend = false;
    var check = ['transition','webkitTransition','MozTransition','OTransition','OTransition','msTransition','KhtmlTransition'];
    var prefix = ['','-webkit-','-moz-','-o-','-o','-ms-','-khtml-'];
    var evs = ['transitionend','webkitTransitionEnd','transitionend','otransitionend','oTransitionEnd','msTransitionEnd','KhtmlTransitionEnd'];
    for(var a=0;a<check.length;a++) {
      if (check[a] in domtest.style) {
        d.transitionstyle = check[a];
        d.prefixstyle = prefix[a];
        d.transitionend = evs[a];
        break;
      }
    }
    d.hastransition = (d.transitionstyle);
    
    function detectCursorGrab() {      
      var lst = ['-moz-grab','-webkit-grab','grab'];
      if ((d.ischrome&&!d.ischrome22)||d.isie) lst=[];  // force setting for IE returns false positive and chrome cursor bug
      for(var a=0;a<lst.length;a++) {
        var p = lst[a];
        domtest.style['cursor']=p;
        if (domtest.style['cursor']==p) return p;
      }
      return 'url(http://www.google.com/intl/en_ALL/mapfiles/openhand.cur),n-resize';  // thank you google for custom cursor!
    }
    d.cursorgrabvalue = detectCursorGrab();

    d.hasmousecapture = ("setCapture" in domtest);
    
    domtest = null;  //memory released

    browserdetected = d;
    
    return d;  
  }
  
  var NiceScrollClass = function(myopt,me) {

    var self = this;

    this.version = '3.1.0';
    this.name = 'nicescroll';
    
    this.me = me;
    
    this.opt = {
      doc:$("body"),
      win:false,
      zindex:9000,
      cursoropacitymin:0,
      cursoropacitymax:1,
      cursorcolor:"#424242",
      cursorwidth:"5px",
      cursorborder:"1px solid #fff",
      cursorborderradius:"5px",
      scrollspeed:60,
      mousescrollstep:8*3,
      touchbehavior:false,
      hwacceleration:true,
      usetransition:true,
      boxzoom:false,
      dblclickzoom:true,
      gesturezoom:true,
      grabcursorenabled:true,
      autohidemode:true,
      background:"",
      iframeautoresize:true,
      cursorminheight:32,
      preservenativescrolling:true,
      railoffset:false,
      bouncescroll:true,
      spacebarenabled:true,
      railpadding:{top:0,right:0,left:0,bottom:0},
      disableoutline:true,
      horizrailenabled:true,
      railalign:"right",
      railvalign:"bottom",
      enabletranslate3d:true,
      enablemousewheel:true,
      enablekeyboard:true,
      smoothscroll:true,
      sensitiverail:true
    };
    
// Options for internal use
    this.opt.snapbackspeed = 80;
    
    if (myopt||false) {
      for(var a in self.opt) {
        if (typeof myopt[a] != "undefined") self.opt[a] = myopt[a];
      }
    }
    
    this.doc = self.opt.doc;
    this.iddoc = (this.doc&&this.doc[0])?this.doc[0].id||'':'';    
    this.ispage = /BODY|HTML/.test((self.opt.win)?self.opt.win[0].nodeName:this.doc[0].nodeName);
    this.haswrapper = (self.opt.win!==false);
    this.win = self.opt.win||(this.ispage?$(window):this.doc);
    this.docscroll = (this.ispage&&!this.haswrapper)?$(window):this.win;
    this.body = $("body");
    this.viewport = false;
    
    this.isfixed = false;
    
    this.iframe = false;
    this.isiframe = ((this.doc[0].nodeName == 'IFRAME') && (this.win[0].nodeName == 'IFRAME'));
    
    this.istextarea = (this.win[0].nodeName == 'TEXTAREA');
    
    this.forcescreen = false; //force to use screen position on events

    this.canshowonmouseevent = (self.opt.autohidemode!="scroll");
    
// Events jump table    
    this.onmousedown = false;
    this.onmouseup = false;
    this.onmousemove = false;
    this.onmousewheel = false;
    this.onkeypress = false;
    this.ongesturezoom = false;
    this.onclick = false;
    
// Nicescroll custom events
    this.onscrollstart = false;
    this.onscrollend = false;
    this.onscrollcancel = false;    
    
    this.onzoomin = false;
    this.onzoomout = false;
    
// Let's start!  
    this.view = false;
    this.page = false;
    
    this.scroll = {x:0,y:0};
    this.scrollratio = {x:0,y:0};    
    this.cursorheight = 20;
    this.scrollvaluemax = 0;
    
    this.scrollrunning = false;
    
    this.scrollmom = false;
    
    this.observer = false;
    
    do {
      this.id = "ascrail"+(ascrailcounter++);
    } while (document.getElementById(this.id));
    
    this.rail = false;
    this.cursor = false;
    this.cursorfreezed = false;  
    
    this.zoom = false;
    this.zoomactive = false;
    
    this.hasfocus = false;
    this.hasmousefocus = false;
    
    this.visibility = true;
    this.locked = false;
    this.hidden = false; // rails always hidden
    this.cursoractive = true; // user can interact with cursors
    
    this.nativescrollingarea = false;
    
    this.events = [];  // event list for unbind
    
    this.saved = {};
    
    this.delaylist = {};
    this.synclist = {};
    
    this.lastdeltax = 0;
    this.lastdeltay = 0;
    
    this.detected = getBrowserDetection(); 
    
    var cap = $.extend({},this.detected);
 
    this.canhwscroll = (cap.hastransform&&self.opt.hwacceleration);
    this.ishwscroll = (this.canhwscroll&&self.haswrapper);
    
    this.istouchcapable = false;  // desktop devices with touch screen support
    
//## Check Chrome desktop with touch support
    if (cap.cantouch&&cap.ischrome&&!cap.isios&&!cap.isandroid) {
      this.istouchcapable = true;
      cap.cantouch = false;  // parse normal desktop events
    }    

//## Firefox 18 nightly build (desktop) false positive (or desktop with touch support)
    if (cap.cantouch&&cap.ismozilla&&!cap.isios) {
      this.istouchcapable = true;
      cap.cantouch = false;  // parse normal desktop events
    }    
    
    this.delayed = function(name,fn,tm,lazy) {
      var dd = self.delaylist[name];
      var nw = (new Date()).getTime();
      if (!lazy&&dd&&dd.tt) return false;
      if (dd&&dd.tt) clearTimeout(dd.tt);
      if (dd&&dd.last+tm>nw&&!dd.tt) {      
        self.delaylist[name] = {
          last:nw+tm,
          tt:setTimeout(function(){self.delaylist[name].tt=0;fn.call();},tm)
        }
      }
      else if (!dd||!dd.tt) {
        self.delaylist[name] = {
          last:nw,
          tt:0
        }
        setTimeout(function(){fn.call();},0);
      }
    };
    
    this.synched = function(name,fn) {
    
      function requestSync() {
        if (self.onsync) return;
        setAnimationFrame(function(){
          self.onsync = false;
          for(name in self.synclist){
            var fn = self.synclist[name];
            if (fn) fn.call(self);
            self.synclist[name] = false;
          }
        });
        self.onsync = true;
      };    
    
      self.synclist[name] = fn;
      requestSync();
      return name;
    };
    
    this.unsynched = function(name) {
      if (self.synclist[name]) self.synclist[name] = false;
    }
    
    this.css = function(el,pars) {  // save & set
      for(var n in pars) {
        self.saved.css.push([el,n,el.css(n)]);
        el.css(n,pars[n]);
      }
    };
    
    this.scrollTop = function(val) {
      return (typeof val == "undefined") ? self.getScrollTop() : self.setScrollTop(val);
    };

    this.scrollLeft = function(val) {
      return (typeof val == "undefined") ? self.getScrollLeft() : self.setScrollLeft(val);
    };
    
// derived by by Dan Pupius www.pupius.net
    BezierClass = function(st,ed,spd,p1,p2,p3,p4) {
      this.st = st;
      this.ed = ed;
      this.spd = spd;
      
      this.p1 = p1||0;
      this.p2 = p2||1;
      this.p3 = p3||0;
      this.p4 = p4||1;
      
      this.ts = (new Date()).getTime();
      this.df = this.ed-this.st;
    };
    BezierClass.prototype = {
      B2:function(t){ return 3*t*t*(1-t) },
      B3:function(t){ return 3*t*(1-t)*(1-t) },
      B4:function(t){ return (1-t)*(1-t)*(1-t) },
      getNow:function(){
        var nw = (new Date()).getTime();
        var pc = 1-((nw-this.ts)/this.spd);
        var bz = this.B2(pc) + this.B3(pc) + this.B4(pc);
        return (pc<0) ? this.ed : this.st+Math.round(this.df*bz);
      },
      update:function(ed,spd){
        this.st = this.getNow();
        this.ed = ed;
        this.spd = spd;
        this.ts = (new Date()).getTime();
        this.df = this.ed-this.st;
        return this;
      }
    };
    
    if (this.ishwscroll) {  
    // hw accelerated scroll
      this.doc.translate = {x:0,y:0,tx:"0px",ty:"0px"};
      
      //this one can help to enable hw accel on ios6 http://indiegamr.com/ios6-html-hardware-acceleration-changes-and-how-to-fix-them/
      if (cap.hastranslate3d&&cap.isios) this.doc.css("-webkit-backface-visibility","hidden");  // prevent flickering http://stackoverflow.com/questions/3461441/      
      
      //derived from http://stackoverflow.com/questions/11236090/
      function getMatrixValues() {
        var tr = self.doc.css(cap.trstyle);
        if (tr&&(tr.substr(0,6)=="matrix")) {
          return tr.replace(/^.*\((.*)\)$/g, "$1").replace(/px/g,'').split(/, +/);
        }
        return false;
      }
      
      this.getScrollTop = function(last) {
        if (!last) {
          var mtx = getMatrixValues();
          if (mtx) return (mtx.length==16) ? -mtx[13] : -mtx[5];  //matrix3d 16 on IE10
          if (self.timerscroll&&self.timerscroll.bz) return self.timerscroll.bz.getNow();
        }
        return self.doc.translate.y;
      };

      this.getScrollLeft = function(last) {
        if (!last) {
          var mtx = getMatrixValues();          
          if (mtx) return (mtx.length==16) ? -mtx[12] : -mtx[4];  //matrix3d 16 on IE10
          if (self.timerscroll&&self.timerscroll.bh) return self.timerscroll.bh.getNow();
        }
        return self.doc.translate.x;
      };
      
      if (document.createEvent) {
        this.notifyScrollEvent = function(el) {
          var e = document.createEvent("UIEvents");
          e.initUIEvent("scroll", false, true, window, 1);
          el.dispatchEvent(e);
        };
      }
      else if (document.fireEvent) {
        this.notifyScrollEvent = function(el) {
          var e = document.createEventObject();
          el.fireEvent("onscroll");
          e.cancelBubble = true; 
        };
      }
      else {
        this.notifyScrollEvent = function(el,add) {}; //NOPE
      }
      
      if (cap.hastranslate3d&&self.opt.enabletranslate3d) {
        this.setScrollTop = function(val,silent) {
          self.doc.translate.y = val;
          self.doc.translate.ty = (val*-1)+"px";
          self.doc.css(cap.trstyle,"translate3d("+self.doc.translate.tx+","+self.doc.translate.ty+",0px)");          
          if (!silent) self.notifyScrollEvent(self.win[0]);
        };
        this.setScrollLeft = function(val,silent) {          
          self.doc.translate.x = val;
          self.doc.translate.tx = (val*-1)+"px";
          self.doc.css(cap.trstyle,"translate3d("+self.doc.translate.tx+","+self.doc.translate.ty+",0px)");          
          if (!silent) self.notifyScrollEvent(self.win[0]);
        };
      } else {
        this.setScrollTop = function(val,silent) {
          self.doc.translate.y = val;
          self.doc.translate.ty = (val*-1)+"px";
          self.doc.css(cap.trstyle,"translate("+self.doc.translate.tx+","+self.doc.translate.ty+")");
          if (!silent) self.notifyScrollEvent(self.win[0]);          
        };
        this.setScrollLeft = function(val,silent) {        
          self.doc.translate.x = val;
          self.doc.translate.tx = (val*-1)+"px";
          self.doc.css(cap.trstyle,"translate("+self.doc.translate.tx+","+self.doc.translate.ty+")");
          if (!silent) self.notifyScrollEvent(self.win[0]);
        };
      }
    } else {
    // native scroll
      this.getScrollTop = function() {
        return self.docscroll.scrollTop();
      };
      this.setScrollTop = function(val) {        
        return self.docscroll.scrollTop(val);
      };
      this.getScrollLeft = function() {
        return self.docscroll.scrollLeft();
      };
      this.setScrollLeft = function(val) {
        return self.docscroll.scrollLeft(val);
      };
    }
    
    this.getTarget = function(e) {
      if (!e) return false;
      if (e.target) return e.target;
      if (e.srcElement) return e.srcElement;
      return false;
    };
    
    this.hasParent = function(e,id) {
      if (!e) return false;
      var el = e.target||e.srcElement||e||false;
      while (el && el.id != id) {
        el = el.parentNode||false;
      }
      return (el!==false);
    };
    
//inspired by http://forum.jquery.com/topic/width-includes-border-width-when-set-to-thin-medium-thick-in-ie
    var _convertBorderWidth = {"thin":1,"medium":3,"thick":5};
    function getWidthToPixel(dom,prop,chkheight) {
      var wd = dom.css(prop);
      var px = parseFloat(wd);
      if (isNaN(px)) {
        px = _convertBorderWidth[wd]||0;
        var brd = (px==3) ? ((chkheight)?(self.win.outerHeight() - self.win.innerHeight()):(self.win.outerWidth() - self.win.innerWidth())) : 1; //DON'T TRUST CSS
        if (self.isie8&&px) px+=1;
        return (brd) ? px : 0; 
      }
      return px;
    };
    
    this.getOffset = function() {
      if (self.isfixed) return {top:parseFloat(self.win.css('top')),left:parseFloat(self.win.css('left'))};
      if (!self.viewport) return self.win.offset();
      var ww = self.win.offset();
      var vp = self.viewport.offset();
      return {top:ww.top-vp.top+self.viewport.scrollTop(),left:ww.left-vp.left+self.viewport.scrollLeft()};
    };
    
    this.updateScrollBar = function(len) {
      if (self.ishwscroll) {
        self.rail.css({height:self.win.innerHeight()});
        if (self.railh) self.railh.css({width:self.win.innerWidth()});
      } else {
        var wpos = self.getOffset();
        var pos = {top:wpos.top,left:wpos.left};
        pos.top+= getWidthToPixel(self.win,'border-top-width',true);
        var brd = (self.win.outerWidth() - self.win.innerWidth())/2;
        pos.left+= (self.rail.align) ? self.win.outerWidth() - getWidthToPixel(self.win,'border-right-width') - self.rail.width : getWidthToPixel(self.win,'border-left-width');
        
        var off = self.opt.railoffset;
        if (off) {
          if (off.top) pos.top+=off.top;
          if (self.rail.align&&off.left) pos.left+=off.left;
        }
        
				if (!self.locked) self.rail.css({top:pos.top,left:pos.left,height:(len)?len.h:self.win.innerHeight()});
				
				if (self.zoom) {				  
				  self.zoom.css({top:pos.top+1,left:(self.rail.align==1) ? pos.left-20 : pos.left+self.rail.width+4});
			  }
				
				if (self.railh&&!self.locked) {
					var pos = {top:wpos.top,left:wpos.left};
					var y = (self.railh.align) ? pos.top + getWidthToPixel(self.win,'border-top-width',true) + self.win.innerHeight() - self.railh.height : pos.top + getWidthToPixel(self.win,'border-top-width',true);
					var x = pos.left + getWidthToPixel(self.win,'border-left-width');
					self.railh.css({top:y,left:x,width:self.railh.width});
				}
		
				
      }
    };
    
    this.doRailClick = function(e,dbl,hr) {

      var fn,pg,cur,pos;
      
      if (self.rail.drag&&self.rail.drag.pt!=1) return;
      if (self.locked) return;
      if (self.rail.drag) return;

      self.cancelScroll();       
      
      self.cancelEvent(e);
      
      if (dbl) {
        fn = (hr) ? self.doScrollLeft : self.doScrollTop;
        cur = (hr) ? ((e.pageX - self.railh.offset().left - (self.cursorwidth/2)) * self.scrollratio.x) : ((e.pageY - self.rail.offset().top - (self.cursorheight/2)) * self.scrollratio.y);
        fn(cur);
      } else {
        fn = (hr) ? self.doScrollLeftBy : self.doScrollBy;
        cur = (hr) ? self.scroll.x : self.scroll.y;
        pos = (hr) ? e.pageX - self.railh.offset().left : e.pageY - self.rail.offset().top;
        pg = (hr) ? self.view.w : self.view.h;        
        (cur>=pos) ? fn(pg) : fn(-pg);
      }
    
    }
    
    self.hasanimationframe = (setAnimationFrame);
    self.hascancelanimationframe = (clearAnimationFrame);
    
    if (!self.hasanimationframe) {
      setAnimationFrame=function(fn){return setTimeout(fn,16)}; // 1000/60)};
      clearAnimationFrame=clearInterval;
    } 
    else if (!self.hascancelanimationframe) clearAnimationFrame=function(){self.cancelAnimationFrame=true};
    
    this.init = function() {

      self.saved.css = [];
      
      if (cap.isie7mobile) return true; // SORRY, DO NOT WORK!
      
      if (cap.hasmstouch) self.css((self.ispage)?$("html"):self.win,{'-ms-touch-action':'none'});
      
/*      
      self.ispage = true;
      self.haswrapper = true;
//      self.win = $(window);
      self.docscroll = $("body");
//      self.doc = $("body");
*/
      
      if (!self.ispage || (!cap.cantouch && !cap.isieold && !cap.isie9mobile)) {
      
        var cont = self.docscroll;
        if (self.ispage) cont = (self.haswrapper)?self.win:self.doc;
        
        if (!cap.isie9mobile) self.css(cont,{'overflow-y':'hidden'});      
        
        if (self.ispage&&cap.isie7) {
          if (self.doc[0].nodeName=='BODY') self.css($("html"),{'overflow-y':'hidden'});  //IE7 double scrollbar issue
          else if (self.doc[0].nodeName=='HTML') self.css($("body"),{'overflow-y':'hidden'});  //IE7 double scrollbar issue
        }
        
        if (cap.isios&&!self.ispage&&!self.haswrapper) self.css($("body"),{"-webkit-overflow-scrolling":"touch"});  //force hw acceleration
        
        var cursor = $(document.createElement('div'));
        cursor.css({
          position:"relative",top:0,"float":"right",width:self.opt.cursorwidth,height:"0px",
          'background-color':self.opt.cursorcolor,
          border:self.opt.cursorborder,
          'background-clip':'padding-box',
          '-webkit-border-radius':self.opt.cursorborderradius,
          '-moz-border-radius':self.opt.cursorborderradius,
          'border-radius':self.opt.cursorborderradius
        });   
        
        cursor.hborder = parseFloat(cursor.outerHeight() - cursor.innerHeight());        
        self.cursor = cursor;        
        
        var rail = $(document.createElement('div'));
        rail.attr('id',self.id);
        
        var v,a,kp = ["left","right"];  //"top","bottom"
        for(var n in kp) {
          a=kp[n];
          v = self.opt.railpadding[a];
          (v) ? rail.css("padding-"+a,v+"px") : self.opt.railpadding[a] = 0;
        }
        
        rail.append(cursor);
        
        rail.width = Math.max(parseFloat(self.opt.cursorwidth),cursor.outerWidth()) + self.opt.railpadding['left'] + self.opt.railpadding['right'];
        rail.css({width:rail.width+"px",'zIndex':(self.ispage)?self.opt.zindex:self.opt.zindex+2,"background":self.opt.background});        
        
        rail.visibility = true;
        rail.scrollable = true;
        
        rail.align = (self.opt.railalign=="left") ? 0 : 1;
        
        self.rail = rail;
        
        self.rail.drag = false;
        
        var zoom = false;
        if (self.opt.boxzoom&&!self.ispage&&!cap.isieold) {
          zoom = document.createElement('div');          
          self.bind(zoom,"click",self.doZoom);
          self.zoom = $(zoom);
          self.zoom.css({"cursor":"pointer",'z-index':self.opt.zindex,'backgroundImage':'url('+scriptpath+'zoomico.png)','height':18,'width':18,'backgroundPosition':'0px 0px'});
          if (self.opt.dblclickzoom) self.bind(self.win,"dblclick",self.doZoom);
          if (cap.cantouch&&self.opt.gesturezoom) {
            self.ongesturezoom = function(e) {
              if (e.scale>1.5) self.doZoomIn(e);
              if (e.scale<0.8) self.doZoomOut(e);
              return self.cancelEvent(e);
            };
            self.bind(self.win,"gestureend",self.ongesturezoom);             
          }
        }
        
// init HORIZ

        self.railh = false;

        if (self.opt.horizrailenabled) {

          self.css(cont,{'overflow-x':'hidden'});

          var cursor = $(document.createElement('div'));
          cursor.css({
            position:"relative",top:0,height:self.opt.cursorwidth,width:"0px",
            'background-color':self.opt.cursorcolor,
            border:self.opt.cursorborder,
            'background-clip':'padding-box',
            '-webkit-border-radius':self.opt.cursorborderradius,
            '-moz-border-radius':self.opt.cursorborderradius,
            'border-radius':self.opt.cursorborderradius
          });   
          
          cursor.wborder = parseFloat(cursor.outerWidth() - cursor.innerWidth());
          self.cursorh = cursor;
          
          var railh = $(document.createElement('div'));
          railh.attr('id',self.id+'-hr');
          railh.height = 1+Math.max(parseFloat(self.opt.cursorwidth),cursor.outerHeight());
          railh.css({height:railh.height+"px",'zIndex':(self.ispage)?self.opt.zindex:self.opt.zindex+2,"background":self.opt.background});
          
          railh.append(cursor);
          
          railh.visibility = true;
          railh.scrollable = true;
          
          railh.align = (self.opt.railvalign=="top") ? 0 : 1;
          
          self.railh = railh;
          
          self.railh.drag = false;
          
        }
        
//        
        
        if (self.ispage) {
          rail.css({position:"fixed",top:"0px",height:"100%"});
          (rail.align) ? rail.css({right:"0px"}) : rail.css({left:"0px"});
          self.body.append(rail);
          if (self.railh) {
            railh.css({position:"fixed",left:"0px",width:"100%"});
            (railh.align) ? railh.css({bottom:"0px"}) : railh.css({top:"0px"});
            self.body.append(railh);
          }
        } else {          
          if (self.ishwscroll) {
            if (self.win.css('position')=='static') self.css(self.win,{'position':'relative'});
            var bd = (self.win[0].nodeName == 'HTML') ? self.body : self.win;
            if (self.zoom) {
              self.zoom.css({position:"absolute",top:1,right:0,"margin-right":rail.width+4});
              bd.append(self.zoom);
            }
            rail.css({position:"absolute",top:0});
            (rail.align) ? rail.css({right:0}) : rail.css({left:0});
            bd.append(rail);
            if (railh) {
              railh.css({position:"absolute",left:0,bottom:0});
              (railh.align) ? railh.css({bottom:0}) : railh.css({top:0});
              bd.append(railh);
            }
          } else {
            self.isfixed = (self.win.css("position")=="fixed");
            var rlpos = (self.isfixed) ? "fixed" : "absolute";
            
            if (!self.isfixed) self.viewport = self.getViewport(self.win[0]);
            if (self.viewport) self.body = self.viewport;
            
            rail.css({position:rlpos});
            if (self.zoom) self.zoom.css({position:rlpos});
            self.updateScrollBar();
            self.body.append(rail);
            if (self.zoom) self.body.append(self.zoom);
            if (self.railh) {
              railh.css({position:rlpos});
              self.body.append(railh);           
            }
          }
          
          if (cap.isios) self.css(self.win,{'-webkit-tap-highlight-color':'rgba(0,0,0,0)','-webkit-touch-callout':'none'});  // prevent grey layer on click
          
					if (cap.isie&&self.opt.disableoutline) self.win.attr("hideFocus","true");  // IE, prevent dotted rectangle on focused div
					if (cap.iswebkit&&self.opt.disableoutline) self.win.css({"outline":"none"});
          
        }
        
        if (self.opt.autohidemode===false) {
          self.autohidedom = false;
        }
        else if (self.opt.autohidemode===true) {
          self.autohidedom = $().add(self.rail);
          if (self.railh) self.autohidedom=self.autohidedom.add(self.railh);
        }
        else if (self.opt.autohidemode=="scroll") {
          self.autohidedom = $().add(self.rail);
          if (self.railh) self.autohidedom=self.autohidedom.add(self.railh);
        }
        else if (self.opt.autohidemode=="cursor") {
          self.autohidedom = $().add(self.cursor);
          if (self.railh) self.autohidedom=self.autohidedom.add(self.railh.cursor);
        }
        else if (self.opt.autohidemode=="hidden") {
          self.autohidedom = false;
          self.hide();
          self.locked = false;
        }
        
        if (cap.isie9mobile) {

          self.scrollmom = new ScrollMomentumClass2D(self);        

          /*
          var trace = function(msg) {
            var db = $("#debug");
            if (isNaN(msg)&&(typeof msg != "string")) {
              var x = [];
              for(var a in msg) {
                x.push(a+":"+msg[a]);
              }
              msg ="{"+x.join(",")+"}";
            }
            if (db.children().length>0) {
              db.children().eq(0).before("<div>"+msg+"</div>");
            } else {
              db.append("<div>"+msg+"</div>");
            }
          }
          window.onerror = function(msg,url,ln) {
            trace("ERR: "+msg+" at "+ln);
          }
*/          
  
          self.onmangotouch = function(e) {
            var py = self.getScrollTop();
            var px = self.getScrollLeft();
            
            if ((py == self.scrollmom.lastscrolly)&&(px == self.scrollmom.lastscrollx)) return true;
//            $("#debug").html('DRAG:'+py);

            var dfy = py-self.mangotouch.sy;
            var dfx = px-self.mangotouch.sx;            
            var df = Math.round(Math.sqrt(Math.pow(dfx,2)+Math.pow(dfy,2)));            
            if (df==0) return;
            
            var dry = (dfy<0)?-1:1;
            var drx = (dfx<0)?-1:1;
            
            var tm = +new Date();
            if (self.mangotouch.lazy) clearTimeout(self.mangotouch.lazy);
            
            if (((tm-self.mangotouch.tm)>80)||(self.mangotouch.dry!=dry)||(self.mangotouch.drx!=drx)) {
//              trace('RESET+'+(tm-self.mangotouch.tm));
              self.scrollmom.stop();
              self.scrollmom.reset(px,py);
              self.mangotouch.sy = py;
              self.mangotouch.ly = py;
              self.mangotouch.sx = px;
              self.mangotouch.lx = px;
              self.mangotouch.dry = dry;
              self.mangotouch.drx = drx;
              self.mangotouch.tm = tm;
            } else {
              
              self.scrollmom.stop();
              self.scrollmom.update(self.mangotouch.sx-dfx,self.mangotouch.sy-dfy);
              var gap = tm - self.mangotouch.tm;              
              self.mangotouch.tm = tm;
              
//              trace('MOVE:'+df+" - "+gap);
              
              var ds = Math.max(Math.abs(self.mangotouch.ly-py),Math.abs(self.mangotouch.lx-px));
              self.mangotouch.ly = py;
              self.mangotouch.lx = px;
              
              if (ds>2) {
                self.mangotouch.lazy = setTimeout(function(){
//                  trace('END:'+ds+'+'+gap);                  
                  self.mangotouch.lazy = false;
                  self.mangotouch.dry = 0;
                  self.mangotouch.drx = 0;
                  self.mangotouch.tm = 0;                  
                  self.scrollmom.doMomentum(30);
                },100);
              }
            }
          }
          
          var top = self.getScrollTop();
          var lef = self.getScrollLeft();
          self.mangotouch = {sy:top,ly:top,dry:0,sx:lef,lx:lef,drx:0,lazy:false,tm:0};
          
          self.bind(self.docscroll,"scroll",self.onmangotouch);
        
        } else {
        
          if (cap.cantouch||self.istouchcapable||self.opt.touchbehavior||cap.hasmstouch) {
          
            self.scrollmom = new ScrollMomentumClass2D(self);
          
            self.ontouchstart = function(e) {
              if (e.pointerType&&e.pointerType!=2) return false;
              
              if (!self.locked) {
              
                if (cap.hasmstouch) {
                  var tg = (e.target) ? e.target : false;
                  while (tg) {
                    var nc = $(tg).getNiceScroll();
                    if ((nc.length>0)&&(nc[0].me == self.me)) break;
                    if (nc.length>0) return false;
                    if ((tg.nodeName=='DIV')&&(tg.id==self.id)) break;
                    tg = (tg.parentNode) ? tg.parentNode : false;
                  }
                }
              
                self.cancelScroll();
                
                var tg = self.getTarget(e);
                
                if (tg) {
                  var skp = (/INPUT/i.test(tg.nodeName))&&(/range/i.test(tg.type));
                  if (skp) return self.stopPropagation(e);
                }
                
                if (!("clientX" in e) && ("changedTouches" in e)) {
                  e.clientX = e.changedTouches[0].clientX;
                  e.clientY = e.changedTouches[0].clientY;
                }
                
                if (self.forcescreen) {
                  var le = e;
                  var e = {"original":(e.original)?e.original:e};
                  e.clientX = le.screenX;
                  e.clientY = le.screenY;    
                }
                
                self.rail.drag = {x:e.clientX,y:e.clientY,sx:self.scroll.x,sy:self.scroll.y,st:self.getScrollTop(),sl:self.getScrollLeft(),pt:2};
                
                if (self.opt.touchbehavior&&self.isiframe&&cap.isie) {
                  var wp = self.win.position();
                  self.rail.drag.x+=wp.left;
                  self.rail.drag.y+=wp.top;
                }
                
                self.hasmoving = false;
                self.lastmouseup = false;
                self.scrollmom.reset(e.clientX,e.clientY);
                if (!cap.cantouch&&!this.istouchcapable&&!cap.hasmstouch) {
                  
                  var ip = (tg)?/INPUT|SELECT|TEXTAREA/i.test(tg.nodeName):false;
                  if (!ip) {
                    if (!self.ispage&&cap.hasmousecapture) tg.setCapture();
                    return self.cancelEvent(e);
                  }
                  if (/SUBMIT|CANCEL|BUTTON/i.test($(tg).attr('type'))) {
                    pc = {"tg":tg,"click":false};
                    self.preventclick = pc;
                  }
                  
                }
              }
              
            };
            
            self.ontouchend = function(e) {
              if (e.pointerType&&e.pointerType!=2) return false;
              if (self.rail.drag&&(self.rail.drag.pt==2)) {
                self.scrollmom.doMomentum();
                self.rail.drag = false;
                if (self.hasmoving) {
                  self.hasmoving = false;
                  self.lastmouseup = true;
                  self.hideCursor();
                  if (cap.hasmousecapture) document.releaseCapture();
                  if (!cap.cantouch) return self.cancelEvent(e);
                }                            
              }                        
              
            };
            
            var moveneedoffset = (self.opt.touchbehavior&&self.isiframe&&!cap.hasmousecapture);
            
            self.ontouchmove = function(e,byiframe) {
              
              if (e.pointerType&&e.pointerType!=2) return false;
    
              if (self.rail.drag&&(self.rail.drag.pt==2)) {
                if (cap.cantouch&&(typeof e.original == "undefined")) return true;  // prevent ios "ghost" events by clickable elements
              
                self.hasmoving = true;

                if (self.preventclick&&!self.preventclick.click) {
                  self.preventclick.click = self.preventclick.tg.onclick||false;                
                  self.preventclick.tg.onclick = self.onpreventclick;
                }

                var ev = $.extend({"original":e},e);
                e = ev;
                
                if (("changedTouches" in e)) {
                  e.clientX = e.changedTouches[0].clientX;
                  e.clientY = e.changedTouches[0].clientY;
                }                
                
                if (self.forcescreen) {
                  var le = e;
                  var e = {"original":(e.original)?e.original:e};
                  e.clientX = le.screenX;
                  e.clientY = le.screenY;      
                }
                
                var ofx = ofy = 0;
                
                if (moveneedoffset&&!byiframe) {
                  var wp = self.win.position();
                  ofx=-wp.left;
                  ofy=-wp.top;
                }                
                
                var fy = e.clientY + ofy;
                var my = (fy-self.rail.drag.y);
                
                var ny = self.rail.drag.st-my;
                
                if (self.ishwscroll&&self.opt.bouncescroll) {
                  if (ny<0) {
                    ny = Math.round(ny/2);
//                    fy = 0;
                  }
                  else if (ny>self.page.maxh) {
                    ny = self.page.maxh+Math.round((ny-self.page.maxh)/2);
//                    fy = 0;
                  }
                } else {
                  if (ny<0) {ny=0;fy=0}
                  if (ny>self.page.maxh) {ny=self.page.maxh;fy=0}
                }
                  
                var fx = e.clientX + ofx;
                  
                if (self.railh&&self.railh.scrollable) {

                  var mx = (fx-self.rail.drag.x);
                  
                  var nx = self.rail.drag.sl-mx;
                  
                  if (self.ishwscroll&&self.opt.bouncescroll) {                  
                    if (nx<0) {
                      nx = Math.round(nx/2);
//                      fx = 0;
                    }
                    else if (nx>self.page.maxw) {
                      nx = self.page.maxw+Math.round((nx-self.page.maxw)/2);
//                      fx = 0;
                    }
                  } else {
                    if (nx<0) {nx=0;fx=0}
                    if (nx>self.page.maxw) {nx=self.page.maxw;fx=0}
                  }
                
                }
                              
                self.synched("touchmove",function(){
                  if (self.rail.drag&&(self.rail.drag.pt==2)) {
                    if (self.prepareTransition) self.prepareTransition(0);
                    if (self.rail.scrollable) self.setScrollTop(ny);
                    self.scrollmom.update(fx,fy);
                    if (self.railh&&self.railh.scrollable) {
                      self.setScrollLeft(nx);
                      self.showCursor(ny,nx);
                    } else {
                      self.showCursor(ny);
                    }
                    if (cap.isie10) document.selection.clear();
                  }
                });
                
                if (!cap.ischrome&&!self.istouchcapable) return self.cancelEvent(e);  //chrome touch emulation doesn't like!
              }
              
            };
          
          }
         
          if (cap.cantouch||self.opt.touchbehavior) {
          
            self.onpreventclick = function(e) {
              if (self.preventclick) {
                self.preventclick.tg.onclick = self.preventclick.click;
                self.preventclick = false;            
                return self.cancelEvent(e);
              }
            }
          
            self.onmousedown = self.ontouchstart;
            
            self.onmouseup = self.ontouchend;

            self.onclick = (cap.isios) ? false : function(e) { 
              if (self.lastmouseup) {
                self.lastmouseup = false;
                return self.cancelEvent(e);
              } else {
                return true;
              }
            }; 
            
            self.onmousemove = self.ontouchmove;
            
            if (cap.cursorgrabvalue) {
              self.css((self.ispage)?self.doc:self.win,{'cursor':cap.cursorgrabvalue});            
              self.css(self.rail,{'cursor':cap.cursorgrabvalue});
            }
            
          } else {
          
            self.onmousedown = function(e,hronly) {       
              if (self.rail.drag&&self.rail.drag.pt!=1) return;
              if (self.locked) return self.cancelEvent(e);            
              self.cancelScroll();              
              self.rail.drag = {x:e.clientX,y:e.clientY,sx:self.scroll.x,sy:self.scroll.y,pt:1,hr:(!!hronly)};
              var tg = self.getTarget(e);
              if (!self.ispage&&cap.hasmousecapture) tg.setCapture();
              if (self.isiframe&&!cap.hasmousecapture) {
                self.saved["csspointerevents"] = self.doc.css("pointer-events");
                self.css(self.doc,{"pointer-events":"none"});
              }
              return self.cancelEvent(e);
            };
            self.onmouseup = function(e) {
              if (self.rail.drag) {
                if (cap.hasmousecapture) document.releaseCapture();
                if (self.isiframe&&!cap.hasmousecapture) self.doc.css("pointer-events",self.saved["csspointerevents"]);
                if(self.rail.drag.pt!=1)return;
                self.rail.drag = false;
                //if (!self.rail.active) self.hideCursor();
                return self.cancelEvent(e);
              }
            };        
            self.onmousemove = function(e) {

              if (self.rail.drag) {
                if(self.rail.drag.pt!=1)return;
                
                if (cap.ischrome&&e.which==0) return self.onmouseup(e);
                
                self.cursorfreezed = true;
                    
                if (self.rail.drag.hr) {
                  self.scroll.x = self.rail.drag.sx + (e.clientX-self.rail.drag.x);
                  if (self.scroll.x<0) self.scroll.x=0;
                  var mw = self.scrollvaluemaxw;
                  if (self.scroll.x>mw) self.scroll.x=mw;
                } else {                
                  self.scroll.y = self.rail.drag.sy + (e.clientY-self.rail.drag.y);
                  if (self.scroll.y<0) self.scroll.y=0;
                  var my = self.scrollvaluemax;
                  if (self.scroll.y>my) self.scroll.y=my;
                }
                
                self.synched('mousemove',function(){
                  if (self.rail.drag&&(self.rail.drag.pt==1)) {
                    self.showCursor();
                    if (self.rail.drag.hr) self.doScrollLeft(Math.round(self.scroll.x*self.scrollratio.x));
                    else self.doScrollTop(Math.round(self.scroll.y*self.scrollratio.y));
                  }
                });
                return self.cancelEvent(e);
              } else {
                self.checkarea = true;
              }
              
            };
          }

          if (cap.cantouch||self.opt.touchbehavior) {
            self.bind(self.win,"mousedown",self.onmousedown);
          }
          
          if (cap.hasmstouch) {
            self.css(self.rail,{'-ms-touch-action':'none'});
            self.css(self.cursor,{'-ms-touch-action':'none'});
            
            self.bind(self.win,"MSPointerDown",self.ontouchstart);
            self.bind(document,"MSPointerUp",self.ontouchend);
            self.bind(document,"MSPointerMove",self.ontouchmove);
            self.bind(self.cursor,"MSGestureHold",function(e){e.preventDefault();});
            self.bind(self.cursor,"contextmenu",function(e){e.preventDefault();});
          }

          if (this.istouchcapable) {  //device with screen touch enabled
            self.bind(self.win,"touchstart",self.ontouchstart);
            self.bind(document,"touchend",self.ontouchend);
            self.bind(document,"touchcancel",self.ontouchend);
            self.bind(document,"touchmove",self.ontouchmove);            
          }
          
          self.bind(self.cursor,"mousedown",self.onmousedown);
          self.bind(self.cursor,"mouseup",self.onmouseup);      

          if (self.railh) {
            self.bind(self.cursorh,"mousedown",function(e){self.onmousedown(e,true)});
            self.bind(self.cursorh,"mouseup",function(e){
              if (self.rail.drag&&self.rail.drag.pt==2) return;
              self.rail.drag = false;
              self.hasmoving = false;
              self.hideCursor();
              if (cap.hasmousecapture) document.releaseCapture();
              return self.cancelEvent(e);
            });
          }
          
          self.bind(document,"mouseup",self.onmouseup);
          if (cap.hasmousecapture) self.bind(self.win,"mouseup",self.onmouseup);
          
          self.bind(document,"mousemove",self.onmousemove);
          if (self.onclick) self.bind(document,"click",self.onclick);
		
          if (!cap.cantouch&&!self.opt.touchbehavior) {
					
            self.rail.mouseenter(function() {
              if (self.canshowonmouseevent) self.showCursor();
              self.rail.active = true;
            });
            self.rail.mouseleave(function() { 
              self.rail.active = false;
              if (!self.rail.drag) self.hideCursor();
            });
            
            if (self.opt.sensitiverail) {
              self.rail.click(function(e){self.doRailClick(e,false,false)});
              self.rail.dblclick(function(e){self.doRailClick(e,true,false)});
              self.cursor.click(function(e){self.cancelEvent(e)});
              self.cursor.dblclick(function(e){self.cancelEvent(e)});
            }
            
            if (self.railh) {
              self.railh.mouseenter(function() {
                if (self.canshowonmouseevent) self.showCursor();
                self.rail.active = true;
              });          
              self.railh.mouseleave(function() { 
                self.rail.active = false;
                if (!self.rail.drag) self.hideCursor();
              });
            }

						if (self.zoom) {
							self.zoom.mouseenter(function() {
								if (self.canshowonmouseevent) self.showCursor();
								self.rail.active = true;
							});          
							self.zoom.mouseleave(function() { 
								self.rail.active = false;
								if (!self.rail.drag) self.hideCursor();
							});
						}

          }
						
					if (self.opt.enablemousewheel) {
						if (!self.isiframe) self.bind((cap.isie&&self.ispage) ? document : self.docscroll,"mousewheel",self.onmousewheel);
						self.bind(self.rail,"mousewheel",self.onmousewheel);
						if (self.railh) self.bind(self.railh,"mousewheel",self.onmousewheelhr);
					}						
						
          if (!self.ispage&&!cap.cantouch&&!(/HTML|BODY/.test(self.win[0].nodeName))) {
            if (!self.win.attr("tabindex")) self.win.attr({"tabindex":tabindexcounter++});
            
            self.win.focus(function(e) {
              domfocus = (self.getTarget(e)).id||true;
              self.hasfocus = true;
              if (self.canshowonmouseevent) self.noticeCursor();
            });
            self.win.blur(function(e) {
              domfocus = false;
              self.hasfocus = false;
            });
            
            self.win.mouseenter(function(e) {
              mousefocus = (self.getTarget(e)).id||true;
              self.hasmousefocus = true;
              if (self.canshowonmouseevent) self.noticeCursor();
            });
            self.win.mouseleave(function() {
              mousefocus = false;
              self.hasmousefocus = false;
            });
            
          };
          
        }  // !ie9mobile
        
        //Thanks to http://www.quirksmode.org !!
        self.onkeypress = function(e) {
          if (self.locked&&self.page.maxh==0) return true;
          
          e = (e) ? e : window.e;
          var tg = self.getTarget(e);
          if (tg&&/INPUT|TEXTAREA|SELECT|OPTION/.test(tg.nodeName)) {
            var tp = tg.getAttribute('type')||tg.type||false;            
            if ((!tp)||!(/submit|button|cancel/i.tp)) return true;
          }
          
          if (self.hasfocus||(self.hasmousefocus&&!domfocus)||(self.ispage&&!domfocus&&!mousefocus)) {
            var key = e.keyCode;
            var ctrl = e.ctrlKey||false;
            var shift = e.shiftKey || false;
            if (self.locked&&key!=27) return self.cancelEvent(e);
            
            var ret = false;
            switch (key) {
              case 38:
              case 63233: //safari
                self.doScrollBy(24*3);
                ret = true;
                break;
              case 40:
              case 63235: //safari
                self.doScrollBy(-24*3);
                ret = true;
                break;
              case 37:
              case 63232: //safari
                if (self.railh) {
                  (ctrl) ? self.doScrollLeft(0) : self.doScrollLeftBy(24*3);
                  ret = true;
                }
                break;
              case 39:
              case 63234: //safari
                if (self.railh) {
                  (ctrl) ? self.doScrollLeft(self.page.maxw) : self.doScrollLeftBy(-24*3);
                  ret = true;
                }
                break;
              case 33:
              case 63276: // safari
                self.doScrollBy(self.view.h);
                ret = true;
                break;
              case 34:
              case 63277: // safari
                self.doScrollBy(-self.view.h);
                ret = true;
                break;
              case 36:
              case 63273: // safari                
                (self.railh&&ctrl) ? self.doScrollPos(0,0) : self.doScrollTo(0);
                ret = true;
                break;
              case 35:
              case 63275: // safari
                (self.railh&&ctrl) ? self.doScrollPos(self.page.maxw,self.page.maxh) : self.doScrollTo(self.page.maxh);
                ret = true;
                break;
              case 32:
                if (self.opt.spacebarenabled) {
                  shift ? self.doScrollBy(self.view.h):self.doScrollBy(-self.view.h);
                  ret = true;
                }
                break;
              case 27: // ESC
                if (self.zoomactive) {
                  self.doZoom();
                  ret = true;
                }
                break;
            }
            if (ret) return self.cancelEvent(e);
          }
        };
        
        if (self.opt.enablekeyboard) self.bind(document,(cap.isopera&&!cap.isopera12)?"keypress":"keydown",self.onkeypress);
        
        self.bind(window,'resize',self.resize);
        self.bind(window,'orientationchange',self.resize);
        
        self.bind(window,"load",self.resize);
		
        if (cap.ischrome&&!self.ispage&&!self.haswrapper) { //chrome void scrollbar bug
          var tmp=self.win.attr("style");
					var ww = parseFloat(self.win.css("width"))+1;
          self.win.css('width',ww);
          self.synched("chromefix",function(){self.win.attr("style",tmp)});
        }
        
// Trying a cross-browser implementation - good luck!

        self.onAttributeChange = function(e) {
          self.lazyResize();
        }
        
        if (!self.ispage&&!self.haswrapper) {
          // thanks to Filip http://stackoverflow.com/questions/1882224/        
          if ("WebKitMutationObserver" in window) {
            self.observer = new WebKitMutationObserver(function(mutations) {
              mutations.forEach(self.onAttributeChange);
            });
            self.observer.observe(self.win[0],{attributes:true,subtree:false});
          } else {        
            self.bind(self.win,(cap.isie&&!cap.isie9)?"propertychange":"DOMAttrModified",self.onAttributeChange);
            if (cap.isie9) self.win[0].attachEvent("onpropertychange",self.onAttributeChange); //IE9 DOMAttrModified bug
          }
        }
        
//

        if (!self.ispage&&self.opt.boxzoom) self.bind(window,"resize",self.resizeZoom);
        if (self.istextarea) self.bind(self.win,"mouseup",self.resize);
        
        self.resize();
        
      }
      
      if (this.doc[0].nodeName == 'IFRAME') {
        function oniframeload(e) {
          self.iframexd = false;
          try {
            var doc = 'contentDocument' in this ? this.contentDocument : this.contentWindow.document;
            var a = doc.domain;            
          } catch(e){self.iframexd = true;doc=false};
          
          if (self.iframexd) {
            if ("console" in window) console.log('NiceScroll error: policy restriced iframe');
            return true;  //cross-domain - I can't manage this        
          }
          
          self.forcescreen = true;
          
          if (self.isiframe) {            
            self.iframe = {
              "doc":$(doc),
              "html":self.doc.contents().find('html')[0],
              "body":self.doc.contents().find('body')[0]
            };
            self.getContentSize = function(){
              return {
                w:Math.max(self.iframe.html.scrollWidth,self.iframe.body.scrollWidth),
                h:Math.max(self.iframe.html.scrollHeight,self.iframe.body.scrollHeight)
              }
            }            
            self.docscroll = $(self.iframe.body);//$(this.contentWindow);
          }
          
          if (!cap.isios&&self.opt.iframeautoresize&&!self.isiframe) {
            self.win.scrollTop(0); // reset position
            self.doc.height("");  //reset height to fix browser bug
            var hh=Math.max(doc.getElementsByTagName('html')[0].scrollHeight,doc.body.scrollHeight);
            self.doc.height(hh);          
          }
          self.resize();
          
          if (cap.isie7) self.css($(self.iframe.html),{'overflow-y':'hidden'});
          //self.css($(doc.body),{'overflow-y':'hidden'});
          self.css($(self.iframe.body),{'overflow-y':'hidden'});
          
          if ('contentWindow' in this) {
            self.bind(this.contentWindow,"scroll",self.onscroll);  //IE8 & minor
          } else {          
            self.bind(doc,"scroll",self.onscroll);
          }                    
          
          if (self.opt.enablemousewheel) {
            self.bind(doc,"mousewheel",self.onmousewheel);
          }
          
          if (self.opt.enablekeyboard) self.bind(doc,(cap.isopera)?"keypress":"keydown",self.onkeypress);
          
          if (cap.cantouch||self.opt.touchbehavior) {
            self.bind(doc,"mousedown",self.onmousedown);
            self.bind(doc,"mousemove",function(e){self.onmousemove(e,true)});
            if (cap.cursorgrabvalue) self.css($(doc.body),{'cursor':cap.cursorgrabvalue});
          }
          
          self.bind(doc,"mouseup",self.onmouseup);
          
          if (self.zoom) {
            if (self.opt.dblclickzoom) self.bind(doc,'dblclick',self.doZoom);
            if (self.ongesturezoom) self.bind(doc,"gestureend",self.ongesturezoom);             
          }
        };
        
        if (this.doc[0].readyState&&this.doc[0].readyState=="complete"){
          setTimeout(function(){oniframeload.call(self.doc[0],false)},500);
        }
        self.bind(this.doc,"load",oniframeload);
        
      }
      
    };
    
    this.showCursor = function(py,px) {
      if (self.cursortimeout) {
        clearTimeout(self.cursortimeout);
        self.cursortimeout = 0;
      }
      if (!self.rail) return;
      if (self.autohidedom) {
        self.autohidedom.stop().css({opacity:self.opt.cursoropacitymax});
        self.cursoractive = true;
      }
      
      if ((typeof py != "undefined")&&(py!==false)) {
        self.scroll.y = Math.round(py * 1/self.scrollratio.y);
      }
      if (typeof px != "undefined") {
        self.scroll.x = Math.round(px * 1/self.scrollratio.x);
      }

      self.cursor.css({height:self.cursorheight,top:self.scroll.y}); 
      if (self.cursorh) {
        (!self.rail.align&&self.rail.visibility) ? self.cursorh.css({width:self.cursorwidth,left:self.scroll.x+self.rail.width}) : self.cursorh.css({width:self.cursorwidth,left:self.scroll.x});
        self.cursoractive = true;
      }
      
      if (self.zoom) self.zoom.stop().css({opacity:self.opt.cursoropacitymax});      
    };
    
    this.hideCursor = function(tm) {
      if (self.cursortimeout) return;
      if (!self.rail) return;
      if (!self.autohidedom) return;
      self.cursortimeout = setTimeout(function() {
         if (!self.rail.active||!self.showonmouseevent) {
           self.autohidedom.stop().animate({opacity:self.opt.cursoropacitymin});
           if (self.zoom) self.zoom.stop().animate({opacity:self.opt.cursoropacitymin});
           self.cursoractive = false;
         }
         self.cursortimeout = 0;
      },tm||400);
    };
    
    this.noticeCursor = function(tm,py,px) {
      self.showCursor(py,px);
      if (!self.rail.active) self.hideCursor(tm);
    };
        
    this.getContentSize = 
      (self.ispage) ?
        function(){
          return {
            w:Math.max(document.body.scrollWidth,document.documentElement.scrollWidth),
            h:Math.max(document.body.scrollHeight,document.documentElement.scrollHeight)
          }
        }
      : (self.haswrapper) ?
        function(){
          return {
            w:self.doc.outerWidth()+parseInt(self.win.css('paddingLeft'))+parseInt(self.win.css('paddingRight')),
            h:self.doc.outerHeight()+parseInt(self.win.css('paddingTop'))+parseInt(self.win.css('paddingBottom'))
          }
        }
      : function() {        
        return {
          w:self.docscroll[0].scrollWidth,
          h:self.docscroll[0].scrollHeight
        }
      };
  
    this.onResize = function(e,page) {
    
	  if (!self.win) return false;
	
      if (!self.haswrapper&&!self.ispage) {        
        if (self.win.css('display')=='none') {
          if (self.visibility) self.hideRail().hideRailHr();
          return false;
        } else {          
          if (!self.hidden&&!self.visibility) self.showRail().showRailHr();
        }        
      }
    
      var premaxh = self.page.maxh;
      var premaxw = self.page.maxw;

      var preview = {h:self.view.h,w:self.view.w};   
      
      self.view = {
        w:(self.ispage) ? self.win.width() : parseInt(self.win[0].clientWidth),
        h:(self.ispage) ? self.win.height() : parseInt(self.win[0].clientHeight)
      };
      
      self.page = (page) ? page : self.getContentSize();
      
      self.page.maxh = Math.max(0,self.page.h - self.view.h);
      self.page.maxw = Math.max(0,self.page.w - self.view.w);
      
      if ((self.page.maxh==premaxh)&&(self.page.maxw==premaxw)&&(self.view.w==preview.w)) {
        // test position        
        if (!self.ispage) {
          var pos = self.win.offset();
          if (self.lastposition) {
            var lst = self.lastposition;
            if ((lst.top==pos.top)&&(lst.left==pos.left)) return self; //nothing to do            
          }
          self.lastposition = pos;
        } else {
          return self; //nothing to do
        }
      }
      
      if (self.page.maxh==0) {
        self.hideRail();        
        self.scrollvaluemax = 0;
        self.scroll.y = 0;
        self.scrollratio.y = 0;
        self.cursorheight = 0;
        self.setScrollTop(0);
        self.rail.scrollable = false;
      } else {       
        self.rail.scrollable = true;
      }
      
      if (self.page.maxw==0) {
        self.hideRailHr();
        self.scrollvaluemaxw = 0;
        self.scroll.x = 0;
        self.scrollratio.x = 0;
        self.cursorwidth = 0;
        self.setScrollLeft(0);
        self.railh.scrollable = false;
      } else {        
        self.railh.scrollable = true;
      }
  
      self.locked = (self.page.maxh==0)&&(self.page.maxw==0);
      if (self.locked) {
				if (!self.ispage) self.updateScrollBar(self.view);
			  return false;
		  }

      if (!self.hidden&&!self.visibility) {
        self.showRail().showRailHr();
      }      
      else if (!self.hidden&&!self.railh.visibility) self.showRailHr();
      
      if (self.istextarea&&self.win.css('resize')&&self.win.css('resize')!='none') self.view.h-=20;      
      if (!self.ispage) self.updateScrollBar(self.view);

      self.cursorheight = Math.min(self.view.h,Math.round(self.view.h * (self.view.h / self.page.h)));
      self.cursorheight = Math.max(self.opt.cursorminheight,self.cursorheight);

      self.cursorwidth = Math.min(self.view.w,Math.round(self.view.w * (self.view.w / self.page.w)));
      self.cursorwidth = Math.max(self.opt.cursorminheight,self.cursorwidth);
      
      self.scrollvaluemax = self.view.h-self.cursorheight-self.cursor.hborder;
      
      if (self.railh) {
        self.railh.width = (self.page.maxh>0) ? (self.view.w-self.rail.width) : self.view.w;
        self.scrollvaluemaxw = self.railh.width-self.cursorwidth-self.cursorh.wborder;
      }
      
      self.scrollratio = {
        x:(self.page.maxw/self.scrollvaluemaxw),
        y:(self.page.maxh/self.scrollvaluemax)
      };
     
      var sy = self.getScrollTop();
      if (sy>self.page.maxh) {
        self.doScroll(self.page.maxh);
      } else {     
        self.scroll.y = Math.round(self.getScrollTop() * (1/self.scrollratio.y));
        self.scroll.x = Math.round(self.getScrollLeft() * (1/self.scrollratio.x));
        if (self.cursoractive) self.noticeCursor();     
      }      
      
      if (self.scroll.y&&(self.getScrollTop()==0)) self.doScrollTo(Math.floor(self.scroll.y*self.scrollratio.y));
      
      return self;
    };
    
    this.resize = function(){self.delayed('resize',self.onResize,30);return self;} // event debounce
    
    this.lazyResize = function() {
      self.delayed('resize',self.resize,250);
    }
   
    this._bind = function(el,name,fn,bubble) {  // primitive bind
      self.events.push({e:el,n:name,f:fn,b:bubble});
      if (el.addEventListener) {
        el.addEventListener(name,fn,bubble||false);
      }
      else if (el.attachEvent) {
        el.attachEvent("on"+name,fn);
      }
      else {
        el["on"+name] = fn;        
      }        
    };
   
    this.bind = function(dom,name,fn,bubble) {  // touch-oriented & fixing jquery bind
      var el = ("jquery" in dom) ? dom[0] : dom;
      if (el.addEventListener) {
        if (cap.cantouch && /mouseup|mousedown|mousemove/.test(name)) {  // touch device support
          var tt=(name=='mousedown')?'touchstart':(name=='mouseup')?'touchend':'touchmove';
          self._bind(el,tt,function(e){
            if (e.touches) {
              if (e.touches.length<2) {var ev=(e.touches.length)?e.touches[0]:e;ev.original=e;fn.call(this,ev);}
            } 
            else if (e.changedTouches) {var ev=e.changedTouches[0];ev.original=e;fn.call(this,ev);}  //blackberry
          },bubble||false);
        }
        self._bind(el,name,fn,bubble||false);
        if (name=='mousewheel') self._bind(el,"DOMMouseScroll",fn,bubble||false);
        if (cap.cantouch && name=="mouseup") self._bind(el,"touchcancel",fn,bubble||false);
      }
      else {
        self._bind(el,name,function(e) {
          e = e||window.event||false;
          if (e) {
            if (e.srcElement) e.target=e.srcElement;
          }
          return ((fn.call(el,e)===false)||bubble===false) ? self.cancelEvent(e) : true;
        });
      } 
    };
    
    this._unbind = function(el,name,fn,bub) {  // primitive unbind
      if (el.removeEventListener) {
        el.removeEventListener(name,fn,bub);
      }
      else if (el.detachEvent) {
        el.detachEvent('on'+name,fn);
      } else {
        el['on'+name] = false;
      }
    };
    
    this.unbindAll = function() {
      for(var a=0;a<self.events.length;a++) {
        var r = self.events[a];        
        self._unbind(r.e,r.n,r.f,r.b);
      }
    };
    
    // Thanks to http://www.switchonthecode.com !!
    this.cancelEvent = function(e) {
      var e = (e.original) ? e.original : (e) ? e : window.event||false;
      if (!e) return false;      
      if(e.preventDefault) e.preventDefault();
      if(e.stopPropagation) e.stopPropagation();
      if(e.preventManipulation) e.preventManipulation();  //IE10
      e.cancelBubble = true;
      e.cancel = true;
      e.returnValue = false;
      return false;
    };

    this.stopPropagation = function(e) {
      var e = (e.original) ? e.original : (e) ? e : window.event||false;
      if (!e) return false;
      if (e.stopPropagation) return e.stopPropagation();
      if (e.cancelBubble) e.cancelBubble=true;
      return false;
    }
    
    this.showRail = function() {
      if ((self.page.maxh!=0)&&(self.ispage||self.win.css('display')!='none')) {
        self.visibility = true;
        self.rail.visibility = true;
        self.rail.css('display','block');
      }
      return self;
    };

    this.showRailHr = function() {
      if (!self.railh) return self;
      if ((self.page.maxw!=0)&&(self.ispage||self.win.css('display')!='none')) {
        self.railh.visibility = true;
        self.railh.css('display','block');
      }
      return self;
    };
    
    this.hideRail = function() {
      self.visibility = false;
      self.rail.visibility = false;
      self.rail.css('display','none');
      return self;
    };

    this.hideRailHr = function() {
      if (!self.railh) return self;
      self.railh.visibility = false;
      self.railh.css('display','none');
      return self;
    };
    
    this.show = function() {
      self.hidden = false;
      self.locked = false;
      return self.showRail().showRailHr();
    };

    this.hide = function() {
      self.hidden = true;
      self.locked = true;
      return self.hideRail().hideRailHr();
    };
    
    this.toggle = function() {
      return (self.hidden) ? self.show() : self.hide();
    };
    
    this.remove = function() {
      self.doZoomOut();
      self.unbindAll();      
      if (self.observer !== false) self.observer.disconnect();      
      self.events = [];
      if (self.cursor) {
        self.cursor.remove();
        self.cursor = null;
      }
      if (self.cursorh) {
        self.cursorh.remove();
        self.cursorh = null;
      }
      if (self.rail) {
        self.rail.remove();
        self.rail = null;
      }
      if (self.railh) {
        self.railh.remove();
        self.railh = null;
      }
      if (self.zoom) {
        self.zoom.remove();
        self.zoom = null;
      }
      for(var a=0;a<self.saved.css.length;a++) {
        var d=self.saved.css[a];
        d[0].css(d[1],(typeof d[2]=="undefined") ? '' : d[2]);
      }
      self.saved = false;      
      self.me.data('__nicescroll',''); //erase all traces
	  self.me = null;
	  self.doc = null;
	  self.docscroll = null;
	  self.win = null;
      return self;
    };
    
    this.scrollstart = function(fn) {
      this.onscrollstart = fn;
      return self;
    }
    this.scrollend = function(fn) {
      this.onscrollend = fn;
      return self;
    }
    this.scrollcancel = function(fn) {
      this.onscrollcancel = fn;
      return self;
    }
    
    this.zoomin = function(fn) {
      this.onzoomin = fn;
      return self;
    }
    this.zoomout = function(fn) {
      this.onzoomout = fn;
      return self;
    }
    
    this.isScrollable = function(e) {      
      var dom = (e.target) ? e.target : e;
      while (dom&&(dom.nodeType==1)&&!(/BODY|HTML/.test(dom.nodeName))) {
        var dd = $(dom);
        var ov = dd.css('overflowY')||dd.css('overflowX')||dd.css('overflow')||'';
        if (/scroll|auto/.test(ov)) return (dom.clientHeight!=dom.scrollHeight);
        dom = (dom.parentNode) ? dom.parentNode : false;        
      }
      return false;
    };

    this.getViewport = function(me) {      
      var dom = (me&&me.parentNode) ? me.parentNode : false;
      while (dom&&(dom.nodeType==1)&&!(/BODY|HTML/.test(dom.nodeName))) {
        var dd = $(dom);
        var ov = dd.css('overflowY')||dd.css('overflowX')||dd.css('overflow')||'';
        if ((/scroll|auto/.test(ov))&&(dom.clientHeight!=dom.scrollHeight)) return dd;
        if (dd.getNiceScroll().length>0) return dd;
        dom = (dom.parentNode) ? dom.parentNode : false;
      }
      return false;
    };
    
    function execScrollWheel(e,hr) {
      var px = 0;
      var py = 0;
      var rt = 1;
      if ("wheelDeltaY" in e) {
        rt = self.opt.mousescrollstep/(16*3);
        px = Math.floor(e.wheelDeltaX*rt);
        py = Math.floor(e.wheelDeltaY*rt);
      } else {
        var delta = e.detail ? e.detail * -1 : e.wheelDelta / 40;
        if (delta) {
          (hr) ? px = Math.floor(delta*self.opt.mousescrollstep) : py = Math.floor(delta*self.opt.mousescrollstep);
        }
      }      
      if (px) {
        if (self.scrollmom) {self.scrollmom.stop()}
        self.lastdeltax+=px;
        self.synched("mousewheelx",function(){var dt=self.lastdeltax;self.lastdeltax=0;if(!self.rail.drag){self.doScrollLeftBy(dt)}});
      }
      if (py) {
        if (self.scrollmom) {self.scrollmom.stop()}
        self.lastdeltay+=py;
        self.synched("mousewheely",function(){var dt=self.lastdeltay;self.lastdeltay=0;if(!self.rail.drag){self.doScrollBy(dt)}});
      }          
    };
    
    this.onmousewheel = function(e) {
      if (self.locked) return true;
      if (!self.rail.scrollable) {
        if (self.railh&&self.railh.scrollable) {
          return self.onmousewheelhr(e);
        } else {
          return true;
        }
      }
      if (self.opt.preservenativescrolling&&self.checkarea) {
        self.checkarea = false;
        self.nativescrollingarea = self.isScrollable(e); 
      }
      if (self.nativescrollingarea) return true; // this isn't my business
      if (self.locked) return self.cancelEvent(e);
      if (self.rail.drag) return self.cancelEvent(e);
      
      execScrollWheel(e,false);
      
      return self.cancelEvent(e);
    };

    this.onmousewheelhr = function(e) {
      if (self.locked||!self.railh.scrollable) return true;
      if (self.opt.preservenativescrolling&&self.checkarea) {
        self.checkarea = false;
        self.nativescrollingarea = self.isScrollable(e); 
      }
      if (self.nativescrollingarea) return true; // this isn't my business
      if (self.locked) return self.cancelEvent(e);
      if (self.rail.drag) return self.cancelEvent(e);

      execScrollWheel(e,true);
      
      return self.cancelEvent(e);
    };
    
    this.stop = function() {
      self.cancelScroll();
      if (self.scrollmon) self.scrollmon.stop();
      self.cursorfreezed = false;
      self.scroll.y = Math.round(self.getScrollTop() * (1/self.scrollratio.y));      
      self.noticeCursor();
      return self;
    };
    
    this.getTransitionSpeed = function(dif) {
      var sp = Math.round(self.opt.scrollspeed*10);
      var ex = Math.min(sp,Math.round((dif / 20) * self.opt.scrollspeed));
      return (ex>20) ? ex : 0;
    }
    
    if (!self.opt.smoothscroll) {
      this.doScrollLeft = function(x,spd) {  //direct
        var y = self.getScrollTop();
        self.doScrollPos(x,y,spd);
      }      
      this.doScrollTop = function(y,spd) {   //direct
        var x = self.getScrollLeft();
        self.doScrollPos(x,y,spd);
      }
      this.doScrollPos = function(x,y,spd) {  //direct
        var nx = (x>self.page.maxw) ? self.page.maxw : x;
        if (nx<0) nx=0;
        var ny = (y>self.page.maxh) ? self.page.maxh : y;
        if (ny<0) ny=0;
        self.synched('scroll',function(){
          self.setScrollTop(ny);
          self.setScrollLeft(nx);
        });
      }
      this.cancelScroll = function() {}; // direct
    } 
    else if (self.ishwscroll&&cap.hastransition&&self.opt.usetransition) {
      this.prepareTransition = function(dif,istime) {
        var ex = (istime) ? ((dif>20)?dif:0) : self.getTransitionSpeed(dif);        
        var trans = (ex) ? cap.prefixstyle+'transform '+ex+'ms ease-out' : '';
        if (!self.lasttransitionstyle||self.lasttransitionstyle!=trans) {
          self.lasttransitionstyle = trans;
          self.doc.css(cap.transitionstyle,trans);
        }
        return ex;
      };
      
      this.doScrollLeft = function(x,spd) {  //trans
        var y = (self.scrollrunning) ? self.newscrolly : self.getScrollTop();
        self.doScrollPos(x,y,spd);
      }      
      
      this.doScrollTop = function(y,spd) {   //trans
        var x = (self.scrollrunning) ? self.newscrollx : self.getScrollLeft();
        self.doScrollPos(x,y,spd);
      }
      
      this.doScrollPos = function(x,y,spd) {  //trans
   
        var py = self.getScrollTop();
        var px = self.getScrollLeft();        
      
        if (((self.newscrolly-py)*(y-py)<0)||((self.newscrollx-px)*(x-px)<0)) self.cancelScroll();  //inverted movement detection      
        
        if (self.opt.bouncescroll==false) {
          if (y<0) y=0;
          else if (y>self.page.maxh) y=self.page.maxh;
          if (x<0) x=0;
          else if (x>self.page.maxw) x=self.page.maxw;
        }
        
        if (x==self.newscrollx&&y==self.newscrolly) return false;
        
        self.newscrolly = y;
        self.newscrollx = x;
        
        self.newscrollspeed = spd||false;
        
        if (self.timer) return false;
        
        self.timer = setTimeout(function(){
        
          var top = self.getScrollTop();
          var lft = self.getScrollLeft();
          
          var dst = {};
          dst.x = x-lft;
          dst.y = y-top;
          dst.px = lft;
          dst.py = top;
          
          var dd = Math.round(Math.sqrt(Math.pow(dst.x,2)+Math.pow(dst.y,2)));          
          
          var df = (self.newscrollspeed) ? self.newscrollspeed : dd;          
          var ms = self.prepareTransition(df);
          
          if (self.timerscroll&&self.timerscroll.tm) clearInterval(self.timerscroll.tm);    
          
          if (ms>0) {
          
            if (!self.scrollrunning&&self.onscrollstart) {
              var info = {"type":"scrollstart","current":{"x":lft,"y":top},"request":{"x":x,"y":y},"end":{"x":self.newscrollx,"y":self.newscrolly},"speed":ms};
              self.onscrollstart.call(self,info);
            }
            
            if (cap.transitionend) {
              if (!self.scrollendtrapped) {
                self.scrollendtrapped = true;
                self.bind(self.doc,cap.transitionend,self.onScrollEnd,false); //I have got to do something usefull!!
              }
            } else {              
              if (self.scrollendtrapped) clearTimeout(self.scrollendtrapped);
              self.scrollendtrapped = setTimeout(self.onScrollEnd,ms);  // simulate transitionend event
            }
            
            var py = top;
            var px = lft;
            self.timerscroll = {
              bz: new BezierClass(py,self.newscrolly,ms,0,0,0.58,1),
              bh: new BezierClass(px,self.newscrollx,ms,0,0,0.58,1)
            };            
            if (!self.cursorfreezed) self.timerscroll.tm=setInterval(function(){self.showCursor(self.getScrollTop(),self.getScrollLeft())},60);
            
          }
          
          self.synched("doScroll-set",function(){
            self.timer = 0;
            if (self.scrollendtrapped) self.scrollrunning = true;
            self.setScrollTop(self.newscrolly);
            self.setScrollLeft(self.newscrollx);
            if (!self.scrollendtrapped) self.onScrollEnd();
          });
          
          
        },50);
        
      };
      
      this.cancelScroll = function() {
        if (!self.scrollendtrapped) return true;        
        var py = self.getScrollTop();
        var px = self.getScrollLeft();
        self.scrollrunning = false;
        if (!cap.transitionend) clearTimeout(cap.transitionend);
        self.scrollendtrapped = false;
        self._unbind(self.doc,cap.transitionend,self.onScrollEnd);        
        self.prepareTransition(0);
        self.setScrollTop(py); // fire event onscroll
        if (self.railh) self.setScrollLeft(px);
        if (self.timerscroll&&self.timerscroll.tm) clearInterval(self.timerscroll.tm);
        self.timerscroll = false;
        
        self.cursorfreezed = false;

        //self.noticeCursor(false,py,px);
        self.showCursor(py,px);
        return self;
      };
      this.onScrollEnd = function() {                
        if (self.scrollendtrapped) self._unbind(self.doc,cap.transitionend,self.onScrollEnd);
        self.scrollendtrapped = false;        
        self.prepareTransition(0);
        if (self.timerscroll&&self.timerscroll.tm) clearInterval(self.timerscroll.tm);
        self.timerscroll = false;        
        var py = self.getScrollTop();
        var px = self.getScrollLeft();
        self.setScrollTop(py);  // fire event onscroll        
        if (self.railh) self.setScrollLeft(px);  // fire event onscroll left
        
        self.noticeCursor(false,py,px);     
        
        self.cursorfreezed = false;
        
        if (py<0) py=0
        else if (py>self.page.maxh) py=self.page.maxh;
        if (px<0) px=0
        else if (px>self.page.maxw) px=self.page.maxw;
        if((py!=self.newscrolly)||(px!=self.newscrollx)) return self.doScrollPos(px,py,self.opt.snapbackspeed);
        
        if (self.onscrollend&&self.scrollrunning) {
          var info = {"type":"scrollend","current":{"x":px,"y":py},"end":{"x":self.newscrollx,"y":self.newscrolly}};
          self.onscrollend.call(self,info);
        } 
        self.scrollrunning = false;
        
      };

    } else {

      this.doScrollLeft = function(x) {  //no-trans
        var y = (self.scrollrunning) ? self.newscrolly : self.getScrollTop();
        self.doScrollPos(x,y);
      }

      this.doScrollTop = function(y) {  //no-trans
        var x = (self.scrollrunning) ? self.newscrollx : self.getScrollLeft();
        self.doScrollPos(x,y);
      }

      this.doScrollPos = function(x,y) {  //no-trans
        var y = ((typeof y == "undefined")||(y===false)) ? self.getScrollTop(true) : y;
      
        if  ((self.timer)&&(self.newscrolly==y)&&(self.newscrollx==x)) return true;
      
        if (self.timer) clearAnimationFrame(self.timer);
        self.timer = 0;      

        var py = self.getScrollTop();
        var px = self.getScrollLeft();
        
        if (((self.newscrolly-py)*(y-py)<0)||((self.newscrollx-px)*(x-px)<0)) self.cancelScroll();  //inverted movement detection
        
        self.newscrolly = y;
        self.newscrollx = x;
        
        if (!self.bouncescroll||!self.rail.visibility) {
          if (self.newscrolly<0) {
            self.newscrolly = 0;
          }
          else if (self.newscrolly>self.page.maxh) {
            self.newscrolly = self.page.maxh;
          }
        }
        if (!self.bouncescroll||!self.railh.visibility) {
          if (self.newscrollx<0) {
            self.newscrollx = 0;
          }
          else if (self.newscrollx>self.page.maxw) {
            self.newscrollx = self.page.maxw;
          }
        }

        self.dst = {};
        self.dst.x = x-px;
        self.dst.y = y-py;
        self.dst.px = px;
        self.dst.py = py;
        
        var dst = Math.round(Math.sqrt(Math.pow(self.dst.x,2)+Math.pow(self.dst.y,2)));
        
        self.dst.ax = self.dst.x / dst;
        self.dst.ay = self.dst.y / dst;
        
        var pa = 0;
        var pe = dst;
        
        if (self.dst.x==0) {
          pa = py;
          pe = y;
          self.dst.ay = 1;
          self.dst.py = 0;
        } else if (self.dst.y==0) {
          pa = px;
          pe = x;
          self.dst.ax = 1;
          self.dst.px = 0;
        }

        var ms = self.getTransitionSpeed(dst);
        if (ms>0) {
          self.bzscroll = (self.bzscroll) ? self.bzscroll.update(pe,ms) : new BezierClass(pa,pe,ms,0,1,0,1);
        } else {
          self.bzscroll = false;
        }
        
        if (self.timer) return;
        
        if ((py==self.page.maxh&&y>=self.page.maxh)||(px==self.page.maxw&&x>=self.page.maxw)) self.checkContentSize();
        
        var sync = 1;
        
        function scrolling() {          
          if (self.cancelAnimationFrame) return true;
          
          self.scrollrunning = true;
          
          sync = 1-sync;
          if (sync) return (self.timer = setAnimationFrame(scrolling)||1);

          var done = 0;
          
          var sc = sy = self.getScrollTop();
          if (self.dst.ay) {            
            sc = (self.bzscroll) ? self.dst.py + (self.bzscroll.getNow()*self.dst.ay) : self.newscrolly;
            var dr=sc-sy;          
            if ((dr<0&&sc<self.newscrolly)||(dr>0&&sc>self.newscrolly)) sc = self.newscrolly;
            self.setScrollTop(sc);
            if (sc == self.newscrolly) done=1;
          } else {
            done=1;
          }
          
          var scx = sx = self.getScrollLeft();
          if (self.dst.ax) {            
            scx = (self.bzscroll) ? self.dst.px + (self.bzscroll.getNow()*self.dst.ax) : self.newscrollx;            
            var dr=scx-sx;
            if ((dr<0&&scx<self.newscrollx)||(dr>0&&scx>self.newscrollx)) scx = self.newscrollx;
            self.setScrollLeft(scx);
            if (scx == self.newscrollx) done+=1;
          } else {
            done+=1;
          }
          
          if (done==2) {
            self.timer = 0;
            self.cursorfreezed = false;
            self.bzscroll = false;
            self.scrollrunning = false;
            if (sc<0) sc=0;
            else if (sc>self.page.maxh) sc=self.page.maxh;
            if (scx<0) scx=0;
            else if (scx>self.page.maxw) scx=self.page.maxw;
            if ((scx!=self.newscrollx)||(sc!=self.newscrolly)) self.doScrollPos(scx,sc);
            else {
              if (self.onscrollend) {
                var info = {"type":"scrollend","current":{"x":sx,"y":sy},"end":{"x":self.newscrollx,"y":self.newscrolly}};
                self.onscrollend.call(self,info);
              }             
            } 
          } else {
            self.timer = setAnimationFrame(scrolling)||1;
          }
        };
        self.cancelAnimationFrame=false;
        self.timer = 1;

        if (self.onscrollstart&&!self.scrollrunning) {
          var info = {"type":"scrollstart","current":{"x":px,"y":py},"request":{"x":x,"y":y},"end":{"x":self.newscrollx,"y":self.newscrolly},"speed":ms};
          self.onscrollstart.call(self,info);
        }        

        scrolling();
        
        if ((py==self.page.maxh&&y>=py)||(px==self.page.maxw&&x>=px)) self.checkContentSize();
        
        self.noticeCursor();
      };
  
      this.cancelScroll = function() {        
        if (self.timer) clearAnimationFrame(self.timer);
        self.timer = 0;
        self.bzscroll = false;
        self.scrollrunning = false;
        return self;
      };
      
    }
    
    this.doScrollBy = function(stp,relative) {
      var ny = 0;
      if (relative) {
        ny = Math.floor((self.scroll.y-stp)*self.scrollratio.y)
      } else {        
        var sy = (self.timer) ? self.newscrolly : self.getScrollTop(true);
        ny = sy-stp;
      }
      if (self.bouncescroll) {
        var haf = Math.round(self.view.h/2);
        if (ny<-haf) ny=-haf
        else if (ny>(self.page.maxh+haf)) ny = (self.page.maxh+haf);
      }
      self.cursorfreezed = false;      

      py = self.getScrollTop(true);
      if (ny<0&&py<=0) return self.noticeCursor();      
      else if (ny>self.page.maxh&&py>=self.page.maxh) {
        self.checkContentSize();
        return self.noticeCursor();
      }
      
      self.doScrollTop(ny);
    };

    this.doScrollLeftBy = function(stp,relative) {
      var nx = 0;
      if (relative) {
        nx = Math.floor((self.scroll.x-stp)*self.scrollratio.x)
      } else {
        var sx = (self.timer) ? self.newscrollx : self.getScrollLeft(true);
        nx = sx-stp;
      }
      if (self.bouncescroll) {
        var haf = Math.round(self.view.w/2);
        if (nx<-haf) nx=-haf
        else if (nx>(self.page.maxw+haf)) nx = (self.page.maxw+haf);
      }
      self.cursorfreezed = false;    

      px = self.getScrollLeft(true);
      if (nx<0&&px<=0) return self.noticeCursor();      
      else if (nx>self.page.maxw&&px>=self.page.maxw) return self.noticeCursor();
      
      self.doScrollLeft(nx);
    };
    
    this.doScrollTo = function(pos,relative) {
      var ny = (relative) ? Math.round(pos*self.scrollratio.y) : pos;
      if (ny<0) ny=0
      else if (ny>self.page.maxh) ny = self.page.maxh;
      self.cursorfreezed = false;
      self.doScrollTop(pos);
    };
    
    this.checkContentSize = function() {      
      var pg = self.getContentSize();
      if ((pg.h!=self.page.h)||(pg.w!=self.page.w)) self.resize(false,pg);
    };
    
    self.onscroll = function(e) {    
      if (self.rail.drag) return;
      if (!self.cursorfreezed) {
        self.synched('scroll',function(){
          self.scroll.y = Math.round(self.getScrollTop() * (1/self.scrollratio.y));
          if (self.railh) self.scroll.x = Math.round(self.getScrollLeft() * (1/self.scrollratio.x));
          self.noticeCursor();
        });
      }
    };
    self.bind(self.docscroll,"scroll",self.onscroll);
    
    this.doZoomIn = function(e) {
      if (self.zoomactive) return;
      self.zoomactive = true;
      
      self.zoomrestore = {
        style:{}
      };
      var lst = ['position','top','left','zIndex','backgroundColor','marginTop','marginBottom','marginLeft','marginRight'];
      var win = self.win[0].style;
      for(var a in lst) {
        var pp = lst[a];
        self.zoomrestore.style[pp] = (typeof win[pp]!='undefined') ? win[pp] : '';
      }
      
      self.zoomrestore.style.width = self.win.css('width');
      self.zoomrestore.style.height = self.win.css('height');
      
      self.zoomrestore.padding = {
        w:self.win.outerWidth()-self.win.width(),
        h:self.win.outerHeight()-self.win.height()
      };
      
      if (cap.isios4) {
        self.zoomrestore.scrollTop = $(window).scrollTop();
        $(window).scrollTop(0);
      }
      
      self.win.css({
        "position":(cap.isios4)?"absolute":"fixed",
        "top":0,
        "left":0,
        "z-index":self.opt.zindex+100,
        "margin":"0px"
      });
      var bkg = self.win.css("backgroundColor");      
      if (bkg==""||/transparent|rgba\(0, 0, 0, 0\)|rgba\(0,0,0,0\)/.test(bkg)) self.win.css("backgroundColor","#fff");
      self.rail.css({"z-index":self.opt.zindex+110});
      self.zoom.css({"z-index":self.opt.zindex+112});      
      self.zoom.css('backgroundPosition','0px -18px');
      self.resizeZoom();
      
      if (self.onzoomin) self.onzoomin.call(self);
      
      return self.cancelEvent(e);
    };

    this.doZoomOut = function(e) {
      if (!self.zoomactive) return;
      self.zoomactive = false;
      
      self.win.css("margin","");
      self.win.css(self.zoomrestore.style);
      
      if (cap.isios4) {
        $(window).scrollTop(self.zoomrestore.scrollTop);
      }
      
      self.rail.css({"z-index":(self.ispage)?self.opt.zindex:self.opt.zindex+2});
      self.zoom.css({"z-index":self.opt.zindex});
      self.zoomrestore = false;
      self.zoom.css('backgroundPosition','0px 0px');
      self.onResize();
      
      if (self.onzoomout) self.onzoomout.call(self);
      
      return self.cancelEvent(e);
    };
    
    this.doZoom = function(e) {
      return (self.zoomactive) ? self.doZoomOut(e) : self.doZoomIn(e);
    };
    
    this.resizeZoom = function() {
      if (!self.zoomactive) return;

      var py = self.getScrollTop(); //preserve scrolling position
      self.win.css({
        width:$(window).width()-self.zoomrestore.padding.w+"px",
        height:$(window).height()-self.zoomrestore.padding.h+"px"
      });
      self.onResize();
      self.setScrollTop(Math.min(self.page.maxh,py));
    };
   
    this.init();
    
    $.nicescroll.push(this);

  };
  
// Inspired by the work of Kin Blas
// http://webpro.host.adobe.com/people/jblas/momentum/includes/jquery.momentum.0.7.js  
  
  
  var ScrollMomentumClass2D = function(nc) {
    var self = this;
    this.nc = nc;
    
    this.lastx = 0;
    this.lasty = 0;
    this.speedx = 0;
    this.speedy = 0;
    this.lasttime = 0;
    this.steptime = 0;
    this.snapx = false;
    this.snapy = false;
    this.demulx = 0;
    this.demuly = 0;
    
    this.lastscrollx = -1;
    this.lastscrolly = -1;
    
    this.chkx = 0;
    this.chky = 0;
    
    this.timer = 0;
    
    this.time = function() {
      return +new Date();//beautifull hack
    };
    
    this.reset = function(px,py) {
      self.stop();
      var now = self.time();
      self.steptime = 0;
      self.lasttime = now;
      self.speedx = 0;
      self.speedy = 0;
      self.lastx = px;
      self.lasty = py;
      self.lastscrollx = -1;
      self.lastscrolly = -1;
    };
    
    this.update = function(px,py) {
      var now = self.time();
      self.steptime = now - self.lasttime;
      self.lasttime = now;      
      var dy = py - self.lasty;
      var dx = px - self.lastx;
      var sy = self.nc.getScrollTop();
      var sx = self.nc.getScrollLeft();
      var newy = sy + dy;
      var newx = sx + dx;
      self.snapx = (newx<0)||(newx>self.nc.page.maxw);
      self.snapy = (newy<0)||(newy>self.nc.page.maxh);
      self.speedx = dx;
      self.speedy = dy;
      self.lastx = px;
      self.lasty = py;
    };
    
    this.stop = function() {
      self.nc.unsynched("domomentum2d");
      if (self.timer) clearTimeout(self.timer);
      self.timer = 0;
      self.lastscrollx = -1;
      self.lastscrolly = -1;
    };
    
    this.doSnapy = function(nx,ny) {
      var snap = false;
      
      if (ny<0) {
        ny=0;
        snap=true;        
      } 
      else if (ny>self.nc.page.maxh) {
        ny=self.nc.page.maxh;
        snap=true;
      }

      if (nx<0) {
        nx=0;
        snap=true;        
      } 
      else if (nx>self.nc.page.maxw) {
        nx=self.nc.page.maxw;
        snap=true;
      }
      
      if (snap) self.nc.doScrollPos(nx,ny,self.nc.opt.snapbackspeed);
    };
    
    this.doMomentum = function(gp) {
      var t = self.time();
      var l = (gp) ? t+gp : self.lasttime;

      var sl = self.nc.getScrollLeft();
      var st = self.nc.getScrollTop();
      
      var pageh = self.nc.page.maxh;
      var pagew = self.nc.page.maxw;
      
      self.speedx = (pagew>0) ? Math.min(60,self.speedx) : 0;
      self.speedy = (pageh>0) ? Math.min(60,self.speedy) : 0;
      
      var chk = l && (t - l) <= 50;
      
      if ((st<0)||(st>pageh)||(sl<0)||(sl>pagew)) chk = false;
      
      var sy = (self.speedy && chk) ? self.speedy : false;
      var sx = (self.speedx && chk) ? self.speedx : false;
      
      if (sy||sx) {
        var tm = Math.max(16,self.steptime); //timeout granularity
        
        if (tm>50) {  // do smooth
          var xm = tm/50;
          self.speedx*=xm;
          self.speedy*=xm;
          tm = 50;
        }
        
        self.demulxy = 0;

        self.lastscrollx = self.nc.getScrollLeft();
        self.chkx = self.lastscrollx;
        self.lastscrolly = self.nc.getScrollTop();
        self.chky = self.lastscrolly;
        
        var nx = self.lastscrollx;
        var ny = self.lastscrolly;
        
        var onscroll = function(){
          var df = ((self.time()-t)>600) ? 0.04 : 0.02;
        
          if (self.speedx) {
            nx = Math.floor(self.lastscrollx - (self.speedx*(1-self.demulxy)));
            self.lastscrollx = nx;
            if ((nx<0)||(nx>pagew)) df=0.10;
          }

          if (self.speedy) {
            ny = Math.floor(self.lastscrolly - (self.speedy*(1-self.demulxy)));
            self.lastscrolly = ny;
            if ((ny<0)||(ny>pageh)) df=0.10;
          }
          
          self.demulxy = Math.min(1,self.demulxy+df);
          
          self.nc.synched("domomentum2d",function(){

            if (self.speedx) {
              var scx = self.nc.getScrollLeft();
              if (scx!=self.chkx) self.stop();
              self.chkx=nx;
              self.nc.setScrollLeft(nx);
            }
          
            if (self.speedy) {
              var scy = self.nc.getScrollTop();
              if (scy!=self.chky) self.stop();          
              self.chky=ny;
              self.nc.setScrollTop(ny);
            }
            
            if(!self.timer) {
              self.nc.hideCursor();
              self.doSnapy(nx,ny);
            }
            
          });
          
          if (self.demulxy<1) {            
            self.timer = setTimeout(onscroll,tm);
          } else {
            self.stop();
            self.nc.hideCursor();
            self.doSnapy(nx,ny);
          }
        };
        
        onscroll();
        
      } else {
        self.doSnapy(self.nc.getScrollLeft(),self.nc.getScrollTop());
      }      
      
    }
    
  };

  
// override jQuery scrollTop
 
  var _scrollTop = jQuery.fn.scrollTop; // preserve original function
   
  $.cssHooks["pageYOffset"] = {
    get: function(elem,computed,extra) {      
      var nice = $.data(elem,'__nicescroll')||false;
      return (nice&&nice.ishwscroll) ? nice.getScrollTop() : _scrollTop.call(elem);
    },
    set: function(elem,value) {
      var nice = $.data(elem,'__nicescroll')||false;    
      (nice&&nice.ishwscroll) ? nice.setScrollTop(parseInt(value)) : _scrollTop.call(elem,value);
      return this;
    }
  };

/*  
  $.fx.step["scrollTop"] = function(fx){    
    $.cssHooks["scrollTop"].set( fx.elem, fx.now + fx.unit );
  };
*/  
  
  jQuery.fn.scrollTop = function(value) {
    if (typeof value == "undefined") {
      var nice = (this[0]) ? $.data(this[0],'__nicescroll')||false : false;
      return (nice&&nice.ishwscroll) ? nice.getScrollTop() : _scrollTop.call(this);
    } else {      
      return this.each(function() {
        var nice = $.data(this,'__nicescroll')||false;
        (nice&&nice.ishwscroll) ? nice.setScrollTop(parseInt(value)) : _scrollTop.call($(this),value);
      });
    }
  }

// override jQuery scrollLeft
 
  var _scrollLeft = jQuery.fn.scrollLeft; // preserve original function
   
  $.cssHooks.pageXOffset = {
    get: function(elem,computed,extra) {
      var nice = $.data(elem,'__nicescroll')||false;
      return (nice&&nice.ishwscroll) ? nice.getScrollLeft() : _scrollLeft.call(elem);
    },
    set: function(elem,value) {
      var nice = $.data(elem,'__nicescroll')||false;    
      (nice&&nice.ishwscroll) ? nice.setScrollLeft(parseInt(value)) : _scrollLeft.call(elem,value);
      return this;
    }
  };
  
/*  
  $.fx.step["scrollLeft"] = function(fx){
    $.cssHooks["scrollLeft"].set( fx.elem, fx.now + fx.unit );
  };  
*/  
 
  jQuery.fn.scrollLeft = function(value) {    
    if (typeof value == "undefined") {
      var nice = (this[0]) ? $.data(this[0],'__nicescroll')||false : false;
      return (nice&&nice.ishwscroll) ? nice.getScrollLeft() : _scrollLeft.call(this);
    } else {
      return this.each(function() {     
        var nice = $.data(this,'__nicescroll')||false;
        (nice&&nice.ishwscroll) ? nice.setScrollLeft(parseInt(value)) : _scrollLeft.call($(this),value);
      });
    }
  }
  
  var NiceScrollArray = function(doms) {
    var self = this;
    this.length = 0;
    this.name = "nicescrollarray";
  
    this.each = function(fn) {
      for(var a=0;a<self.length;a++) fn.call(self[a]);
      return self;
    };
    
    this.push = function(nice) {
      self[self.length]=nice;
      self.length++;
    };
    
    this.eq = function(idx) {
      return self[idx];
    };
    
    if (doms) {
      for(a=0;a<doms.length;a++) {
        var nice = $.data(doms[a],'__nicescroll')||false;
        if (nice) {
          this[this.length]=nice;
          this.length++;
        }
      };
    }
    
    return this;
  };
  
  function mplex(el,lst,fn) {
    for(var a=0;a<lst.length;a++) fn(el,lst[a]);
  };  
  mplex(
    NiceScrollArray.prototype,
    ['show','hide','toggle','onResize','resize','remove','stop','doScrollPos'],
    function(e,n) {
      e[n] = function(){
        var args = arguments;
        return this.each(function(){          
          this[n].apply(this,args);
        });
      };
    }
  );  
  
  jQuery.fn.getNiceScroll = function(index) {
    if (typeof index == "undefined") {
      return new NiceScrollArray(this);
    } else {
      var nice = $.data(this[index],'__nicescroll')||false;
      return nice;
    }
  };
  
  jQuery.extend(jQuery.expr[':'], {
    nicescroll: function(a) {
      return ($.data(a,'__nicescroll'))?true:false;
    }
  });  
  
  $.fn.niceScroll = function(wrapper,opt) {        
    if (typeof opt=="undefined") {
      if ((typeof wrapper=="object")&&!("jquery" in wrapper)) {
        opt = wrapper;
        wrapper = false;        
      }
    }
    var ret = new NiceScrollArray();
    if (typeof opt=="undefined") opt = {};
    
    if (wrapper||false) {      
      opt.doc = $(wrapper);
      opt.win = $(this);
    }    
    var docundef = !("doc" in opt);   
    if (!docundef&&!("win" in opt)) opt.win = $(this);    
    
    this.each(function() {
      var nice = $(this).data('__nicescroll')||false;
      if (!nice) {
        opt.doc = (docundef) ? $(this) : opt.doc;
        nice = new NiceScrollClass(opt,$(this));        
        $(this).data('__nicescroll',nice);
      }
      ret.push(nice);
    });
    return (ret.length==1) ? ret[0] : ret;
  };
  
  window.NiceScroll = {
    getjQuery:function(){return jQuery}
  };
  
  if (!$.nicescroll) {
   $.nicescroll = new NiceScrollArray();
  }
  
})( jQuery );