var scroller = {
		init: function() {
			scroller.docH = document.getElementById("content").offsetHeight;
			scroller.contH = document.getElementById("container").offsetHeight;
			scroller.scrollAreaH = document.getElementById("scrollArea").offsetHeight;

			scroller.scrollH = (scroller.contH * scroller.scrollAreaH) / scroller.docH;
			if(scroller.scrollH < 15) scroller.scrollH = 15;
			document.getElementById("scroller").style.height =Math.round(scroller.scrollH) + "px";
			scroller.scrollDist = Math.round(scroller.scrollAreaH-scroller.scrollH);
			Drag.init(document.getElementById("scroller"),null,0,0,-1,scroller.scrollDist);
			document.getElementById("scroller").onDrag = function (x,y) {
				var scrollY = parseInt(document.getElementById("scroller").style.top);
				var docY = 0 - (scrollY * (scroller.docH - scroller.contH) / scroller.scrollDist);
				document.getElementById("content").style.top = docY + "px";
			}
		}
	}
	onload = scroller.init;