// Extended Tooltip Javascript
// copyright 9th August 2002, 3rd July 2005, 24th August 2008
// by Stephen Chapman, Felgall Pty Ltd

// permission is granted to use this javascript provided that the below code is not altered

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) + 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";
	}
	}
}