// 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) + 10; 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";}}}