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(); 
		dm = document.getElementById(oi); 
		ds = dm.style; 
		st = ds.visibility; 
		
		if (dm.offsetWidth) ew = dm.offsetWidth; 
		else if (dm.clip.width) ew = dm.clip.width; 
		
		if (st == "visible" || st == "show") {
			ds.visibility = "hidden"; 
			} 
		else {
			tv = mouseY(evt) + 5; 
			lv = mouseX(evt) - (ew/4); 
			// 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";
			}
		}
	}