function getPageSize(){
    
    var yScroll;
    
    if (window.scrollMaxY) {    
        yScroll = window.innerHeight + window.scrollMaxY;
    } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
        yScroll = document.body.scrollHeight;
    } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
        yScroll = document.body.offsetHeight;
    }
    
    var windowHeight;
    if (self.innerHeight) {    // all except Explorer
        windowHeight = self.innerHeight;
    } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
        windowHeight = document.documentElement.clientHeight;
    } else if (document.body) { // other Explorers
        windowHeight = document.body.clientHeight;
    }    
    
    // for small pages with total height less then height of the viewport
    if(yScroll < windowHeight){
        pageHeight = windowHeight;
    } else { 
        pageHeight = yScroll;
    }

    return pageHeight;
}

function eScroll($top,$end,$speed)
{
	var startX = 0, startY = 0;
	var ns = (navigator.appName.indexOf("Netscape") != -1);
	var d = document;
	var px = document.layers ? "" : "px";
	function ml(id)
	{
		var el=d.getElementById?d.getElementById(id):d.all?d.all[id]:d.layers[id];
		if(d.layers)el.style=el;
		el.sP=function(x,y){this.style.left=x+px;this.style.top=y+px;};
		el.x = startX; el.y = startY;
		return el;
	}
	window.stayTopLeft=function()
	{
		var pY = ns ? pageYOffset : document.documentElement && document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop;
		var dY = (pY > $top) ? pY-$top : startY;
		var mY = getPageSize();
		dY = (dY > mY-$end) ? mY-$end : dY;
		ftlObj.y += (dY - ftlObj.y)/ $speed;
		ftlObj.sP(ftlObj.x, ftlObj.y);
		setTimeout("stayTopLeft()", 20);
	}
	ftlObj = ml("divStayTopLeft");
	setTimeout("stayTopLeft()",20);
}