//set to right scroll in goods detail page
var bNetscape4plus = (navigator.appName == "Netscape" && navigator.appVersion.substring(0,1) >= "4");
var bExplorer4plus = (navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.substring(0,1) >= "4");

function CheckUIElements()
{
	var yMenuFrom, yMenuTo, yButtonFrom, yButtonTo, yOffset, timeoutNextCheck;

	if ( bNetscape4plus ) 
	{
		yMenuFrom   = document.getElementById("divMenu").top;
		yMenuTo     = top.pageYOffset + 0; 
	}
	else if ( bExplorer4plus )
	{
		yMenuFrom   = parseInt (document.getElementById("divMenu").style.top, 0);
		yMenuTo     = document.documentElement.scrollTop + 0;
	}
	
	timeoutNextCheck = 20;
	
	if ( Math.abs (yButtonFrom - (yMenuTo + 152)) < 6 && yButtonTo < yButtonFrom )
	{
		setTimeout ("CheckUIElements()", timeoutNextCheck);
		return;
	}

	if ( yMenuFrom != yMenuTo )
	{
		yOffset = Math.ceil( Math.abs( yMenuTo - yMenuFrom ) / 20 );
		if ( yMenuTo < yMenuFrom )
		yOffset = -yOffset;
		
		if ( bNetscape4plus )
		{
			document.getElementById("divMenu").top += yOffset;
			document.getElementById("divMenu").top = document.getElementById("divMenu").top+yOffset + "px"
		}
		else if ( bExplorer4plus )
			document.getElementById("divMenu").style.top = parseInt (document.getElementById("divMenu").style.top, 0) + yOffset;
	
		timeoutNextCheck = 1;
	
	}
	
	if ( bNetscape4plus)
		setTimeout ("CheckUIElements()", timeoutNextCheck);
	else if ( bExplorer4plus)
		setTimeout ("CheckUIElements()", timeoutNextCheck);
}

function OnLoad()
{
	var y;
	if ( top.frames.length )
	{
		if ( bNetscape4plus )
		{
			document.getElementById("divMenu").top = top.pageYOffset + 0; 
			document.getElementById("divMenu").visibility = "visible";
		}
		else if ( bExplorer4plus )
		{
			document.getElementById("divMenu").style.top = document.documentElement.scrollTop + 0;
			document.getElementById("divMenu").style.visibility = "visible";
		}
	}

	CheckUIElements();
	return true;
}

OnLoad();