// Extended Tooltip Javascript
// copyright 9th August 2002, 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 (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 - 67; 
               lv = evt.pageX - (ew / 4) + 20; 
               }
            else {
               tv = evt.y - 67 + document.body.scrollTop; 
               lv = evt.x - (ew / 4) + document.body.scrollLeft + 20; 
               }
            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"; 
         }
      }
   }