function pw() 
{
	return window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
}

function mouseX(evt) 
{
	return evt.clientX ? evt.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) : evt.pageX;
} 

function mouseY(evt) 
{
	return evt.clientY ? evt.clientY + (document.documentElement.scrollTop || document.body.scrollTop) : evt.pageY
} 

function popUp(evt,oi) 
{
	if (document.getElementById) 
	{
		var wp = pw(); 
		var dm = document.getElementById(oi); 
		dm.title.value = ''; 
		var ds = dm.style; 
		var st = ds.visibility; 
		var ew = 0;
		if (dm.offsetWidth)
		{ 
			ew = dm.offsetWidth;
		} 
		else
		{
			ew = 400;	
		}
		if (st == "visible" || st == "show" || evt.type=="mouseout")
		{ 
			//clearTimeout(ds.finch);
			ds.visibility = "hidden";
		} 
		else 
		{
			tv = mouseY(evt) + 20; lv = mouseX(evt) - (ew/4);
			if (lv < 2)
			{
				lv = 2;
			}
			else if (lv + ew > wp)
			{
				 lv -= ew/2;
			} 
			lv += 'px';
			tv += 'px';  
			ds.left = lv; 
			ds.top = tv; 
			ds.visibility = "visible";
			//ds.finch = setTimeout('ds.visibility = "visible"', 1250);
		}
	}
}