var scroll_min_step = 8;
var scroll_start_step = 20; //触摸后,移动距离超过step后才开始滚动
var scroll_side_width = 30; //边距
//滚动条,android 3.0以下overflow:auto无效
//在滚动事件: onscrolling=function(x, y, isleft, isright, istop, isbottom, touchend, nottouch)
//滚动结束事件: onafterscroll=function(x, y, isleft, isright, istop, isbottom, touchend)
//从边框开始滚动事件: onscrollingfromside=function(x, y, startx, starty, isleft, isright, istop, isbottom),如果有做处理返回true
//从边框开始滚动结束事件: onafterscrollfromside=function(x, y, startx, starty, isleft, isright, istop, isbottom)
//参数inertiadisabled: 是否禁止惯性滚动
scroller = function(pageelement, horizontalonly, verticalonly, showscrollbar, alwaysshowscrollbar, twoway, inertiadisabled) {
	var scollerdivision;
	if(pageelement.tagname=='body' && (scollerdivision=pageelement.ownerdocument.getelementbyid('scollerdivision'))) {
		pageelement = scollerdivision;
		this._resetscrollerelement(scollerdivision);
	}
	else if(pageelement.id=='contentarea') {
		pageelement.style.display = 'none';
		this._resetscrollerelement(pageelement);
		pageelement.style.display = '';
	}
	pageelement.scroller = this;
	this.pageelement = pageelement;
	this.horizontalonly = horizontalonly;
	this.verticalonly = verticalonly;
	this.showscrollbar = showscrollbar;
	this.alwaysshowscrollbar = alwaysshowscrollbar;
	this.twoway = twoway;
	this.inertiadisabled = inertiadisabled;
	this.parentscroller = null;
	for(var obj = this.pageelement; obj; obj = obj.parentnode) {
		if(obj!=this.pageelement && obj.scroller) {
			this.parentscroller = obj.scroller;
			break;
		}
		if(obj.tagname=='body' && !(obj=(obj.ownerdocument.parentwindow ? obj.ownerdocument.parentwindow : obj.ownerdocument.defaultview).frameelement)) {
			break;
		}
	}
	var scroller = this;
	this.pageelement.ontouchstart = function(event) {
		event.preventdefault();
		return scroller._ontouchstart(event);
	};
	this.pageelement.ontouchmove = function(event) {
		event.preventdefault();
		return scroller._ontouchmove(event);
	};
	this.pageelement.ontouchend = function(event) {
		event.preventdefault();
		return scroller._ontouchend(event);
	};
	this.pageelement.ondragstart = function(event) {
		event.preventdefault();
		return false;
	};
	if(alwaysshowscrollbar) {
		var pageelementsize = {clientwidth:-1, clientheight:-1, scrollwidth:-1, scrollheight:-1};
		window.setinterval(function() {
			if(scroller.pageelement.clientwidth!=pageelementsize.clientwidth ||
			   scroller.pageelement.clientheight!=pageelementsize.clientheight ||
			   scroller.pageelement.scrollwidth!=pageelementsize.scrollwidth ||
			   scroller.pageelement.scrollheight!=pageelementsize.scrollheight) {
			   	pageelementsize.clientwidth = scroller.pageelement.clientwidth;
			   	pageelementsize.clientheight = scroller.pageelement.clientheight;
			   	pageelementsize.scrollwidth = scroller.pageelement.scrollwidth;
			   	pageelementsize.scrollheight = scroller.pageelement.scrollheight;
				scroller.showbar();
			}
		}, 200);
	}
};
scroller.prototype._resetscrollerelement = function(pageelement) { //重置页面元素
	pageelement.style.overflow = 'hidden';
	var parentelement = pageelement.parentnode;
	var values = [['left', domutils.getspacing(parentelement, 'left')], ['right', domutils.getspacing(parentelement, 'right')], ['top', domutils.getspacing(parentelement, 'top')], ['bottom', domutils.getspacing(parentelement, 'bottom')]];
	if(parentelement.style.width && parentelement.style.width.indexof('px')!=-1) {
		pageelement.style.width =  parentelement.style.width;
		pageelement.style.height = parentelement.style.height;
	}
	else {
		pageelement.style.width =  ((parentelement.tagname=='body' ? parentelement.ownerdocument.documentelement.clientwidth : parentelement.offsetwidth) - values[0][1] - values[1][1]) + 'px';
		pageelement.style.height = ((parentelement.tagname=='body' ? parentelement.ownerdocument.documentelement.clientheight : parentelement.offsetheight) - values[2][1] - values[3][1]) + 'px';
	}
	for(var i=0; i<4; i++) {
		if(values[i][1]!=0) {
			eval("parentelement.style.margin" + values[i][0] + " = '0px'; parentelement.style.padding" + values[i][0] + " = '0px'; pageelement.style.margin" + values[i][0] + " = values[i][1] + 'px';");
		}
	}
};
try {
	scroller.prototype.__definesetter__("onscrolling", function(val) {
		if(!this.onscrollingeventfunctions) {
			this.onscrollingeventfunctions = [];
		}
		this.onscrollingeventfunctions.push(val);
	});
	scroller.prototype.__definesetter__("onafterscroll", function(val) {
		if(!this.onafterscrolleventfunctions) {
			this.onafterscrolleventfunctions = [];
		}
		this.onafterscrolleventfunctions.push(val);
	});
	scroller.prototype.__definesetter__("onscrollingfromside", function(val) {
		if(!this.onscrollingfromsideeventfunctions) {
			this.onscrollingfromsideeventfunctions = [];
		}
		this.onscrollingfromsideeventfunctions.push(val);
	});
	scroller.prototype.__definesetter__("onafterscrollfromside", function(val) {
		if(!this.onafterscrollfromsideeventfunctions) {
			this.onafterscrollfromsideeventfunctions = [];
		}
		this.onafterscrollfromsideeventfunctions.push(val);
	});
}
catch(e) {

}
scroller.prototype._getparentscroller = function() { //获取父滚动条
	for(var obj = this.pageelement; obj; obj = obj.parentnode) {
		if(obj!=this.pageelement && obj.scroller) {
			return obj.scroller;
		}
		if(obj.tagname=='body' && !(obj=(obj.ownerdocument.parentwindow ? obj.ownerdocument.parentwindow : obj.ownerdocument.defaultview).frameelement)) {
			break;
		}
	}
	return null;
}
scroller.prototype._isscrolled = function(type, parentscrolleronly) { //检查是否有滚动过, type: horizontal/vertical/side
	if(!parentscrolleronly) {
		var scolled;
		if(!type) {
			scolled = this.horizontalscroll || this.verticalscroll || this.sidescroll;
		}
		else {
			eval('scolled = this.' + type + 'scroll;');
		}
		if(scolled) {
			return true;
		}
	}
	var parentscroller = this._getparentscroller();
	return parentscroller && parentscroller._isscrolled(type, false);
};
scroller.prototype._ontouchstart = function(event) {
	if(event.stoppropagation) {
		event.stoppropagation();
	}
	else {
		event.cancelbubble = true;
	}
	var touch = event.touches[0];
	this._resetscroller();
	this.begintime = new date().gettime();
	this.previousx = touch.screenx;
	this.previousy = touch.screeny;
	this.startx = touch.screenx;
	this.starty = touch.screeny;
	this.horizontalscroll = false;
	this.verticalscroll = false;
	this.sidescroll = false;
	this.parentscroller = this._getparentscroller();
	if(this.inertiascrolltimer && this.inertiascrolltimer>0) {
		window.clearinterval(this.inertiascrolltimer);
		this.inertiascrolltimer = 0;
	}
	return false;
};
scroller.prototype._ontouchmove = function(event) {
	if(event.stoppropagation) {
		event.stoppropagation();
	}
	else {
		event.cancelbubble = true;
	}
	var touch = event.touches[0];
	var x = this.previousx - touch.screenx;
	var y = this.previousy - touch.screeny;
	x = math.abs(x) < scroll_min_step ? 0 : x;
	y = math.abs(y) < scroll_min_step ? 0 : y;
	if(x==0 && y==0) {
		return;
	}
	if(this._dosidescroll(this, x, y) || this._doscroll(x, y, scroll_start_step, this.horizontalonly, this.verticalonly)) {
		if(x!=0) {
			this.previousx = touch.screenx;
		}
		if(y!=0) {
			this.previousy = touch.screeny;
		}
	}
};
scroller.prototype._ontouchend = function(event) {
	if(!this._isscrolled()) {
		eventutils.clickelement(event.srcelement);
		return;
	}
	if(event.stoppropagation) {
		event.stoppropagation();
	}
	else {
		event.cancelbubble = true; 
	}
	if(this._isscrolled('side')) { //从边框滚动
		this._doaftersidescroll(this);
		return;
	}
	var time = new date().gettime() - this.begintime;
	var inertiatime = 300;
	if(time>inertiatime || (this.inertiadisabled && (this.horizontalscroll || this.verticalscroll))) { //触摸开始到结束时间大于300毫秒
		this._doafterscroll(this);
		return;
	}
	//触摸开始到结束时间小于300毫秒,惯性滚动
	var scroller = this;
	var inertiascroller = this;
	for(; !inertiascroller.horizontalscroll && !inertiascroller.verticalscroll; inertiascroller=inertiascroller._getparentscroller());
	var count = 0;
	var distance = math.min(3000, (inertiascroller.horizontalscroll ? inertiascroller.pageelement.scrollwidth : inertiascroller.pageelement.scrollheight) / math.max(time/inertiatime*10, 3)); //最多移动3000px
	var step = math.round(5 + 55 * distance/3000); //步长5～60
	var times = distance / step;
	var xstep = !inertiascroller.horizontalscroll ? 0 : (inertiascroller.startx > this.previousx ? step : -step);
	var ystep = !inertiascroller.verticalscroll ? 0 : (inertiascroller.starty > this.previousy ? step : -step);
	this.inertiascrolltimer = window.setinterval(function() {
		inertiascroller.scroll(xstep, ystep, true, true);
		if((++count)<times &&
		   (xstep==0 || (!inertiascroller.isleft && !inertiascroller.isright)) &&
		   (ystep==0 || (!inertiascroller.istop && !inertiascroller.isbottom))) {
			return;
		}
		window.clearinterval(scroller.inertiascrolltimer);
		scroller.inertiascrolltimer = 0;
		scroller._doafterscroll(scroller);
	}, 10);
};
scroller.prototype._resetscroller = function() {
	this.horizontalscroll = false;
	this.verticalscroll = false;
	this.sidescroll = false;
	var parentscroller = this._getparentscroller();
	if(parentscroller) {
		parentscroller._resetscroller();
	}
};
scroller.prototype._dosidescroll = function(srcscoller, x, y) { //从边框滚动,递归函数
	if(!this._isscrolled('side') && math.abs(x)<scroll_start_step && math.abs(y)<scroll_start_step) {
		return false;
	}
	var isleft = this.sidescroll ? this.isleft : x!=0 && srcscoller.startx <= scroll_side_width;
	var isright = this.sidescroll ? this.isright : x!=0 && srcscoller.startx >= top.document.body.clientwidth - scroll_side_width;
	var istop = this.sidescroll ? this.istop : y!=0 && !isleft && !isright && srcscoller.starty <= scroll_side_width;
	var isbottom = this.sidescroll ? this.isbottom : y!=0 && !isleft && !isright && srcscoller.starty >= top.document.body.clientheight - scroll_side_width;
	if(!isleft && !isright && istop && !isbottom) {
		return false;
	}
	//检查当前滚动条以及父滚动条是否有从边框开始滚动事件
	for(var i=0; i<(!this.onscrollingfromsideeventfunctions ? 0 : this.onscrollingfromsideeventfunctions.length); i++) {
		if(this.onscrollingfromsideeventfunctions[i].call(srcscoller, x, y, srcscoller.startx, srcscoller.starty, isleft, isright, istop, isbottom) && !this.sidescroll) {
			this.sidescroll = true;
			this.isleft = isleft;
			this.isright = isright;
			this.istop = istop;
			this.isbottom = isbottom;
		}
	}
	if(this.sidescroll) {
		return true;
	}
	var parentscroller = this._getparentscroller();
	return parentscroller && parentscroller._dosidescroll(srcscoller, x, y);
};
scroller.prototype._doaftersidescroll = function(srcscoller) { //结束从边框滚动
	for(var i=0; i<(!this.sidescroll || !this.onafterscrollfromsideeventfunctions ? 0 : this.onafterscrollfromsideeventfunctions.length); i++) {
		this.onafterscrollfromsideeventfunctions[i].call(this, srcscoller.startx - srcscoller.previousx, srcscoller.starty - srcscoller.previousy, srcscoller.startx, srcscoller.starty, this.isleft, this.isright, this.istop, this.isbottom, true);
	}
	var parentscroller = this._getparentscroller();
	if(parentscroller) {
		parentscroller._doaftersidescroll(srcscoller);
	}
};
scroller.prototype._doscroll = function(x, y, startstep, horizontalonly, verticalonly) { //水平或者垂直滚动,递归函数
	if(this._isscrolled(null, true)) { //父滚动条已经开始滚动
		var parentscroller = this._getparentscroller();
		if(parentscroller) {
			parentscroller._doscroll(x, y, startstep, parentscroller.horizontalscroll, parentscroller.verticalscroll);
		}
		return true;
	}
	if(!verticalonly && !this.horizontalscroll && (!this.verticalscroll || this.twoway) && math.abs(x)>=startstep) { //不是仅垂直滚动,未开始水平滚动,且未开始垂直滚动或者允许双向滚动,且移动距离大于启动步长
		this.horizontalscroll = true;
	}
	if(!horizontalonly && !this.verticalscroll && (!this.horizontalscroll || this.twoway) && math.abs(y)>=startstep) { //不是仅水平滚动,未开始垂直滚动,且未开始水平滚动或者允许双向滚动,且移动距离大于启动步长
		this.verticalscroll = true;
	}
	var scrolled = this.horizontalscroll || this.verticalscroll;
	if(scrolled) {
		this.scroll(this.horizontalscroll ? x : 0, this.verticalscroll ? y : 0, false, true);
	}
	if((!scrolled && (this.verticalonly || this.horizontalonly)) || 
	   (horizontalonly=(this.horizontalscroll && (this.isleft || this.isright))) ||
	   (verticalonly=(this.verticalscroll && (this.istop || this.isbottom)))) {
		var parentscroller = this._getparentscroller();
		if(parentscroller) {
			if(!parentscroller.horizontalscroll && !parentscroller.verticalscroll) {
				parentscroller.startx = this.previousx;
				parentscroller.starty = this.previousy;
			}
			scrolled = parentscroller._doscroll(x, y, scrolled ? 1 : scroll_start_step, parentscroller.horizontalonly || (scrolled && horizontalonly), parentscroller.verticalonly || (scrolled && verticalonly)) || scrolled;
		}
	}
	return scrolled;
};
scroller.prototype._doafterscroll = function(srcscroller) { //结束滚动
	for(var i=0; i<((!this.verticalscroll && !this.horizontalscroll) || !this.onafterscrolleventfunctions ? 0 : this.onafterscrolleventfunctions.length); i++) {
		this.onafterscrolleventfunctions[i].call(null, this.startx - srcscroller.previousx, this.starty - srcscroller.previousy, this.isleft, this.isright, this.istop, this.isbottom, false);
	}
	var parentscroller = this._getparentscroller();
	if(parentscroller) {
		parentscroller._doafterscroll(srcscroller);
	}
};
scroller.prototype.scroll = function(x, y, touchend, bytouch) { //touchend:是否结束触摸
	if(!this.verticalonly && x!=0) {
		var left = math.round(this.pageelement.scrollleft + x);
		this.pageelement.scrollleft = left;
		this.istop = this.verticalscroll && this.istop;
		this.isbottom = this.verticalscroll && this.isbottom;
		this.isleft = this.pageelement.scrollleft > left;
		this.isright = this.pageelement.scrollleft < left;
		this.showbar();
	}
	if(!this.horizontalonly && y!=0) {
		var top = math.round(this.pageelement.scrolltop + y);
		this.pageelement.scrolltop = top;
		this.isleft = this.horizontalscroll && this.isleft;
		this.isright = this.horizontalscroll && this.isright;
		this.istop = this.pageelement.scrolltop > top;
		this.isbottom = this.pageelement.scrolltop < top;
		this.showbar();
	}
	for(var i=0; i<(!this.onscrollingeventfunctions ? 0 : this.onscrollingeventfunctions.length); i++) {
		this.onscrollingeventfunctions[i].call(null, x, y, this.isleft, this.isright, this.istop, this.isbottom, touchend, !bytouch);
	}
};
scroller.prototype.scrollto = function(top, left) { //滚动到指定位置
	this.pageelement.scrollleft = left;
	this.pageelement.scrolltop = top;
	this.showbar();
};
scroller.prototype.showbar = function() {
	if(!this.showscrollbar) {
		return;
	}
	//启动隐藏滚动条定时器
	if(!this.alwaysshowscrollbar) {
		var scroller = this;
		if(this.hidebartimer) {
			window.cleartimeout(this.hidebartimer);
		}
		this.hidebartimer = window.settimeout(function() {
			scroller.hidebar();
		}, 2000);
	}
	if(!this.horizontalonly && (this.isverticalbarvisible || this.alwaysshowscrollbar || this.verticalscroll)) {
		if(this.pageelement.scrollheight <= this.pageelement.clientheight) {
			if(this.verticalscroller && this.verticalscroller.parentnode) {
				this.verticalscroller.parentnode.removechild(this.verticalscroller);
			}
			this.verticalscroller = null;
			this.isverticalbarvisible = false;
		}
		else {	
			if(!this.verticalscroller) { //创建垂直滚动条
				this._createscrollbar(true);
			}
			this.verticalscroller.style.top = this.pageelement.scrolltop + "px";
			var height = math.max(30, math.round(this.verticalscroller.offsetheight * this.pageelement.clientheight / this.pageelement.scrollheight));
			this.verticalscrollertrack.style.height = height + "px";
			this.verticalscrollertrack.style.top = math.round((this.verticalscroller.offsetheight - height) * (this.pageelement.scrolltop / (this.pageelement.scrollheight - this.pageelement.clientheight))) + "px";
			this.isverticalbarvisible = true;
		}
	}
	if(!this.verticalonly && (this.ishorizontalbarvisible || this.alwaysshowscrollbar || this.horizontalscroll)) {
		if(this.pageelement.scrollwidth <= this.pageelement.clientwidth) {
			if(this.horizontalscroller && this.horizontalscroller.parentnode) {
				this.horizontalscroller.parentnode.removechild(this.horizontalscroller);
			}
			this.horizontalscroller = null;
			this.ishorizontalbarvisible = false;
		}
		else {
			if(!this.horizontalscroller) { //创建水平滚动条
				this._createscrollbar(false);
			}
			this.horizontalscroller.style.left = this.pageelement.scrollleft + "px";
			var width = math.max(30, this.horizontalscroller.offsetwidth * this.pageelement.clientwidth / this.pageelement.scrollwidth);
			this.horizontalscrollertrack.style.width = width + "px";
			this.horizontalscrollertrack.style.left = math.round((this.horizontalscroller.offsetwidth - width) * (this.pageelement.scrollleft / (this.pageelement.scrollwidth - this.pageelement.clientwidth))) + "px";
			this.ishorizontalbarvisible = true;
		}
	}
};
scroller.prototype._createscrollbar = function(vertical) {
	var divscroller = this.pageelement.ownerdocument.createelement("div");
	divscroller.style.position = "absolute";
	divscroller.style.zindex = 1000;
	
	var marginleft = cssutils.getelementcomputedstyle(this.pageelement, 'margin-left');
	var marginright = cssutils.getelementcomputedstyle(this.pageelement, 'margin-right');
	var margintop = cssutils.getelementcomputedstyle(this.pageelement, 'margin-top');
	var marginbottom = cssutils.getelementcomputedstyle(this.pageelement, 'margin-bottom');
	marginleft = marginleft && marginleft.indexof('px')!=-1 ? number(marginleft.replace('px', '')) : 0;
	marginright = marginright && marginright.indexof('px')!=-1 ? number(marginright.replace('px', '')) : 0;
	margintop = margintop && margintop.indexof('px')!=-1 ? number(margintop.replace('px', '')) : 0;
	marginbottom = marginbottom && marginbottom.indexof('px')!=-1 ? number(marginbottom.replace('px', '')) : 0;
	divscroller.style.top = (this.pageelement.scolltop + (vertical ? 0 : this.pageelement.clientheight)) + "px";
	divscroller.style.left = (this.pageelement.scrollleft + (!vertical ? 0 : this.pageelement.clientwidth)) + "px";
	divscroller.style.height = vertical ? (this.pageelement.clientheight + margintop + marginbottom) + "px" : "0px";
	divscroller.style.width = vertical ? "0px" : (this.pageelement.clientwidth + marginleft + marginright) + "px";
	this.pageelement.appendchild(divscroller);

	var div = this.pageelement.ownerdocument.createelement("div");
	div.classname = 'scrollbar ' + (vertical ? 'vertical' : 'horizontal')  + 'scrollbar';
	if(vertical) {
		div.style.height = divscroller.style.height;
	}
	else {
		div.style.width = divscroller.style.width;
	}
	divscroller.appendchild(div)
	
	var track = this.pageelement.ownerdocument.createelement("div");
	track.style.position = "absolute";
	track.classname = 'scrollertrack ' + (vertical ? 'vertical' : 'horizontal')  + 'scrollertrack';
	div.appendchild(track);
	
	if(vertical) {
		this.verticalscroller = divscroller;
		this.verticalscrollertrack = track;
	}
	else {
		this.horizontalscroller = divscroller;
		this.horizontalscrollertrack = track;
	}
	var scroller = this;
	track.clientx = -100000;
	track.clienty = -100000;
	track.onmousedown = function(event) { //事件处理:鼠标按下
		track.ownerdocument.body.onselectstart = function(event) {
			return false;
		};
		track.clientx = event.clientx;
		track.clienty = event.clienty;
	}
	track.ownerdocument.body.onmousemove = function(event) { //事件处理:鼠标移动
		if(track.clientx == -100000) {
			return;
		}
		scroller.scroll(vertical ? 0 : (event.clientx - track.clientx) / scroller.pageelement.clientwidth * scroller.pageelement.scrollwidth,
					 	vertical ? (event.clienty - track.clienty) / scroller.pageelement.clientheight * scroller.pageelement.scrollheight : 0,
					 	false,
					 	false);
		track.clientx = event.clientx;
		track.clienty = event.clienty;
	};
	track.ownerdocument.body.onmouseup = function(event) { //事件处理:鼠标松开
		track.ownerdocument.body.onselectstart = null;
		track.clientx = -100000;
		track.clienty = -100000;
	};
};
scroller.prototype.hidebar = function() {
	if(this.alwaysshowscrollbar) {
		return;
	}
	var opacity = 100;
	var verticalscroller = this.verticalscroller;
	var horizontalscroller = this.horizontalscroller;
	this.verticalscroller = null;
	this.horizontalscroller = null;
	this.ishorizontalbarvisible = false;
	this.isverticalbarvisible = false;
	var hidebartimer = window.setinterval(function() {
		opacity -= 10;
		if(opacity<=0) {
			window.clearinterval(hidebartimer);
		}
		if(verticalscroller) {
			if(opacity<=0) {
				if(verticalscroller.parentnode) {
					verticalscroller.parentnode.removechild(verticalscroller);
				}
			}
			else if(document.all) {
				verticalscroller.style.filter = 'alpha(opacity=' + opacity + ');';
			}
			else {
				verticalscroller.style.opacity = (opacity / 100.0);
			}
		}
		if(horizontalscroller) {
			if(opacity<=0) {
				if(horizontalscroller.parentnode) {
					horizontalscroller.parentnode.removechild(horizontalscroller);
				}
			}
			else if(document.all) {
				horizontalscroller.style.filter = 'alpha(opacity=' + opacity + ');';
			}
			else {
				horizontalscroller.style.opacity = (opacity / 100.0);
			}
		}
	}, 50);
};
scroller.prototype.scrollwithtimer = function(targetposition, verticalscroll, minstep, onscrollend) { //定时滚动
	var scroller = this;
	var scrollposition = verticalscroll ? this.pageelement.scrolltop : this.pageelement.scrollleft;
	var step = math.max((minstep ? minstep : 10), math.ceil(math.abs(scrollposition - targetposition)/5));
	var previousposition = 0.1;
	var scrolltimer = window.setinterval(function() {
		var position = verticalscroll ? scroller.pageelement.scrolltop : scroller.pageelement.scrollleft;
		if(position==targetposition || scrollposition!=position || previousposition==position) { //已经移动到位,或者用户手动移动过
			window.clearinterval(scrolltimer);
			if(onscrollend) {
				onscrollend.call();
			}
			return;
		}
		previousposition = position;
		var size = (position<targetposition ? math.min(step, targetposition - position) : -math.min(step, position - targetposition));
		scroller.scroll((verticalscroll ? 0 : size), (verticalscroll ? size : 0));
		scrollposition = verticalscroll ? scroller.pageelement.scrolltop : scroller.pageelement.scrollleft;
	}, 1);
};