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

// permission is granted to use this javascript provided that the below code is not altered
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 (ai) return wS ? document.getElementById(oi).style:document.getElementById(oi); if (al) return wS ? document.all[oi].style: document.all[oi]; if (an) return document.layers[oi];}
function pw() {return window.innerWidth != null? window.innerWidth: document.body.clientWidth != null? document.body.clientWidth:null;}
function mouseX(evt) {if (evt.pageX) return evt.pageX; else if (evt.clientX)return evt.clientX + (document.documentElement.scrollLeft ?  document.documentElement.scrollLeft : document.body.scrollLeft); else return null;}
function mouseY(evt) {if (evt.pageY) return evt.pageY; else if (evt.clientY)return evt.clientY + (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop); else 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
    {
      tv = mouseY(evt) + 20; 
      lv = mouseX(evt) - (ew/4); 
      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";
    }
  }
}