// 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.top = 140;
		 	ds.visibility = "visible";
		}
	}
}