/*
'------------------------------------------------------------------------------------------------------------
'FileName : right_menu.js
'Description	 : Javascript Common Function
'Last Modify Date : 
'Programmed by Lim Hyoung-kyu
'------------------------------------------------------------------------------------------------------------
*/

var isDOM = (document.getElementById ? true : false);
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
var isNS = navigator.appName == "Netscape";

function getRef(id)
{
	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
}

var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck,isNS,divMenu,desk03timer ;

function moveRightEdge()
{
	if (isNS4)
	{
		yMenuFrom   = divMenu.top;
		yMenuTo     = windows.pageYOffset;
	}
	else if (isDOM)
	{
		yMenuFrom   = parseInt (divMenu.style.top, 10);
		yMenuTo     = (isNS ? window.pageYOffset : document.body.scrollTop);
	}

	if(yMenuTo<132) yMenuTo = 28;
	
	timeoutNextCheck = 500;
	
	if(yMenuTo>450)
	{
		if (isNS4) document.body.scrollTop.visibility = "visible";
		else document.body.scrollTop.visibility = "visible";
	}
	else if (isDOM)
	{
		if (isNS4)
			document.body.scrollTop.visibility = "hiddens";
		else
			document.body.scrollTop.visibility = "hidden";
	}
	
	if (yMenuFrom != yMenuTo)
	{
		yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 10);
		if (yMenuTo < yMenuFrom) yOffset = -yOffset;
		if (isNS4) divMenu.top += yOffset;
		else if (isDOM) divMenu.style.top = parseInt (divMenu.style.top, 10) + yOffset;
		timeoutNextCheck = 10;
	}
	setTimeout ("moveRightEdge()", timeoutNextCheck);
}

if (isNS4)
{
	divMenu = getRef('desk03');
	moveRightEdge();
}
else if (isDOM)
{
	divMenu = getRef('desk03');
	moveRightEdge();
}