var defaultMenuWidth="50px"; //set default menu width.

var ie5=document.all && !window.opera;
var ns6=document.getElementById;

if (ie5||ns6) document.write('<div id="popitmenu" onMouseover="clearhidemenu();" onMouseout="dynamichide(event)"></div>');

function iecompattest()
{
	return (document.compatMode && document.compatMode.indexOf("CSS")!=-1)? document.documentElement : document.body;
}

function showmenu(e, which, optWidth)
{
	if (!document.all&&!document.getElementById) return;
	clearhidemenu();
	menuobj=ie5? document.all.popitmenu : document.getElementById("popitmenu");
	menuobj.innerHTML=which;
	menuobj.style.width=(typeof optWidth!="undefined")? optWidth : defaultMenuWidth;
	menuobj.contentwidth=menuobj.offsetWidth;
	menuobj.contentheight=menuobj.offsetHeight;
	eventX=ie5? event.clientX : e.clientX;
	eventY=ie5? event.clientY : e.clientY;

	//Find out how close the mouse is to the corner of the window
	var rightedge=ie5? iecompattest().clientWidth-eventX : window.innerWidth-eventX;
	var bottomedge=ie5? iecompattest().clientHeight-eventY : window.innerHeight-eventY;

	//if the horizontal distance isn't enough to accomodate the width of the context menu
	if (rightedge<menuobj.contentwidth) menuobj.style.left=ie5? iecompattest().scrollLeft+eventX-menuobj.contentwidth+"px" : window.pageXOffset+eventX-menuobj.contentwidth+"px";
	else menuobj.style.left=ie5? iecompattest().scrollLeft+eventX+"px" : window.pageXOffset+eventX+"px";

	if (bottomedge<menuobj.contentheight) menuobj.style.top=ie5? iecompattest().scrollTop+eventY-menuobj.contentheight+"px" : window.pageYOffset+eventY-menuobj.contentheight+"px";
	else menuobj.style.top=ie5? iecompattest().scrollTop+event.clientY+"px" : window.pageYOffset+eventY+"px";

	menuobj.style.visibility="visible";
	return false;
}

function contains_ns6(a, b) 
{
	while (b.parentNode) if ((b = b.parentNode) == a) return true;

	return false;
}

function hidemenu()
{
	if (window.menuobj) menuobj.style.visibility="hidden";
}

function dynamichide(e)
{
	if (ie5&&!menuobj.contains(e.toElement)) hidemenu();
	else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget)) hidemenu();
}

function delayhidemenu()
{
	delayhide=setTimeout("hidemenu()",500);
}

function clearhidemenu()
{
	if (window.delayhide) clearTimeout(delayhide)
}

if (ie5||ns6) document.onclick=hidemenu;