var hideDelay=500;
	
var runable=(!document.getElementById)? (!document.all)? (!document.layers)? -1:1:2:3;
var ie=(document.all)? true:false;
var nowShowing="$";
var showedMenu="";
var onLayer=onLink=flgShow=0;
var timerID=st=en=0;
var mx=my=0;

window.onload=function () { if (runable>1) document.onmousemove=function (event) {delayHideMenu(event) } }
function getElm(name,style)
{
	var doc=self.document;
	if (runable==2) var gobj=doc.all(name);
	else var gobj=doc.getElementById(name);
	if (style && runable>1) gobj=gobj.style;
	return gobj;
}
function showMenu(n,X,Y)
{
	if (runable<2) return;
	var obj=getElm("navi"+n,1);
	var lnk=getElm("menu"+n);
	var lnks=getElm("menu"+n,1);
	nowShowing=n;
	
	if (showedMenu!="" && showedMenu!=nowShowing) hideMenu(showedMenu);
	if (obj.visibility=="visible" && onLink==1) return;
	lnk.onmouseout=leaveLink;
	onLayer=onLink=1;
	obj.left=X || parseInt(lnks.left);
	obj.top=Y || parseInt(lnks.top)+((runable==1)? lnk.clip.height:lnk.offsetHeight);
	obj.visibility="visible";
	showedMenu=nowShowing;
	flgShow=1;
	clearTimeout(timerID);
	st=t();
}
function leaveLink()
{
	onLink=0;
	en=t();
}
function delayHideMenu(e)
{
	mx=gmx(e);
	my=gmy(e);
	if (nowShowing=="$" || flgShow==0 || st==0) return;
	if (onLink==0 && checkPosition())
	{
en=t();
onLayer=0;
hideMenu();
	}
	else
	{
st=t();
onLayer=1;
clearTimeout(timerID);
	}
}
function hideMenu(n)
{
	clearTimeout(timerID);
	if (!n)
	{

if (nowShowing=="$" || onLayer!=0) return;
if (onLink==1) 
{
	timerID=setTimeout("hideMenu()",hideDelay);
	st=t();
	return;
}
else if (((en-st)%hideDelay)<hideDelay && st!=0) 
{
	clearTimeout(timerID);
	timerID=setTimeout("hideMenu()",hideDelay);
	st=0;
	return;
}
else if (!checkPosition())
{
	st=t();
	return;
}
	}
	
	getElm("navi"+((n)? n:nowShowing),1).visibility="hidden";
	showedMenu="";
	onLayer=flgShow=0;
}
function checkPosition()
{
	if (nowShowing=="$") return;
	var obj=getElm("navi"+nowShowing);
	var x=mx-((runable==1)? parseInt(obj.left):obj.offsetLeft);
	var y=my-((runable==1)? parseInt(obj.top):obj.offsetTop);
	var w=(runable==1)? parseInt(obj.clip.width):obj.offsetWidth;
	var h=(runable==1)? parseInt(obj.clip.height):obj.offsetHeight;
	if (onLink==0 && (x<=0 || y<=0 || x>=w || y>=h)) return true;
	return false;
}
function t()
{
	return (new Date()).getTime();
}
function gmx(e)
{
	if (ie) return document.body.scrollLeft+event.clientX;
	else return e.pageX;
}
function gmy(e)
{
	if (ie) return document.body.scrollTop+event.clientY;
	else return e.pageY;
}