// Extended Tooltip Javascript
// copyright 9th August 2002, by Stephen Chapman, Felgall Pty Ltd


var DH = 0;
var an = 0;
var al = 0;
var ai = 0;
if (document.getElementById) 
{
	ai = 1; 
	DH = 1;
}
else 
{
	if (document.all) 
	{
		al = 1; 
		DH = 1;
	} 
	else 
	{ 
		browserVersion = parseInt(navigator.appVersion); 
		if ((navigator.appName.indexOf('Netscape') != -1) && (browserVersion == 4)) 
		{
			an = 1; 
			DH = 1;
		}
	}
} 

function fd(oi,ws) 
{
	if (ws == 1) 
	{
		if (ai) 
		{
			return (document.getElementById(oi).style);
		}
		else 
		{
			if (al) 
			{
				return (document.all[oi].style);
			} 
			else
			{
				if (an) 
				{
					return (document.layers[oi]);
				}
			}
		;
		}
	} 
	else 
	{
		if (ai) 
		{
			return (document.getElementById(oi));
		} 
		else 
		{
			if (al) 
			{
				return (document.all[oi]);
			} 
			else 
			{
				if (an) 
				{
				return (document.layers[oi]);
				}
			};
		}
	}
} 

function pw() 
{
	if (window.innerWidth != null) return window.innerWidth; 
	if (document.body.clientWidth != null)
	return document.body.clientWidth; 
	return (null);
} 

function popUp(evt,oi) 
{
	if (DH) 
	{
		var wp = pw(); 
		ds = fd(oi,1); 
		dm = fd(oi,0); 
		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  
		{ 
			if (evt.y || evt.pageY) 
			{
				if (evt.pageY) 
				{
					tv = evt.pageY + 20;
					lv = evt.pageX - (ew/4);
				} 
				else 
				{
					tv = evt.y + 20 + document.body.scrollTop; 
					lv = evt.x  - (ew/4) + document.body.scrollLeft;
				} if (lv < 2) lv = 2; else if (lv + ew > wp) lv -= ew/2;
				if (!an) 
				{
					lv += 'px';tv += 'px'
				};
				ds.left = lv; ds.top = tv;
			} 
			ds.visibility = "visible";
		}
	}
}