function getposOffset(what, offsettype){
	totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
	parentEl=what.offsetParent;
	while (parentEl!=null){
	totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
	parentEl=parentEl.offsetParent;
	}
	return totaloffset;
}
var left;
var top;
var tt='';
function show(obj){
	if(tt!='')clearTimeout(tt);
	left=getposOffset(obj,'left');
	left+=obj.offsetWidth+1;
	top=getposOffset(obj,'top');
	var stop = parseInt(document.documentElement.scrollTop);
	if ( isNaN(stop) || stop == 0 )
	{
	stop = parseInt(document.body.scrollTop);
	}
	t=parseInt(getposOffset(obj,'top')-20);
	document.getElementById('popup').style.position='absolute';
	document.getElementById('popup').style.left=String(left+'px');
	document.getElementById('popup').style.top=t+'px';
	document.getElementById('popup').style.display='block';
	document.getElementById('popup').onmouseover=function(){show(obj);}
	document.getElementById('popup').onmouseout=function(){hide(obj);}
}
function hide(obj){
	tt=setTimeout("document.getElementById('popup').style.display='none';",1000);
}