var OP = (navigator.userAgent.indexOf("Opera",0) != -1)?1:0;
var N6 = document.getElementById;
var N4 = document.layers;
var IE = document.all;
var pageScrollTimer;

function JumpTop()
{
	if ((IE || N6 || N4 || OP) && window.scrollTo) 
	{
		pageScroll(0,0,10);
	}else{
		location.hash = "top";
	}
}

function pageScroll(toX,toY,frms,cuX,cuY) 
{
	if (pageScrollTimer) 
		clearTimeout(pageScrollTimer);
	if (!toX || toX < 0) 
		toX = 0;
	if (!toY || toY < 0) 
		toY = 0;
	if (!cuX) 
		cuX = 0 + getScrollLeft();
	if (!cuY) 
		cuY = 0 + getScrollTop();
	if (!frms) 
		frms = 6;

	cuX += (toX - getScrollLeft()) / frms; if (cuX < 0) cuX = 0;
	cuY += (toY - getScrollTop()) / frms;  if (cuY < 0) cuY = 0;
	var posX = Math.floor(cuX);
	var posY = Math.floor(cuY);
	window.scrollTo(posX, posY);

	if (posX != toX || posY != toY) 
	{
		pageScrollTimer = setTimeout("pageScroll("+toX+","+toY+","+frms+","+cuX+","+cuY+")",16);
	}

}

function getScrollLeft() 
{
	if (IE) 
	{
		return document.body.scrollLeft || document.documentElement.scrollLeft;
	}
		else if (N6 || N4 || OP)
	{
		return window.pageXOffset;
	}else{
		return 0;
	}
}

function getScrollTop() 
{
	if (IE) 
	{
		return document.body.scrollTop || document.documentElement.scrollTop;
	} 
		else if (N6 || N4 || OP) 
	{
		return window.pageYOffset;
	}else{
		return 0;
	}
}