// This function is used for the Suckerfish (flyout) menus

sfHover = function() {
    var sfEls = document.getElementById("nav").getElementsByTagName("LI");
    for (var i=0; i<sfEls.length; i++) {
        sfEls[i].onmouseover=function() {
            this.className+=" sfhover";
        }
        sfEls[i].onmouseout=function() {
            this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
        }
    }
}
if (window.attachEvent) window.attachEvent("onload", sfHover);



// menuExpandable.js - implements an expandable menu based on a HTML list
// Author: Dave Lindquist (<a href="http://www.gazingus.org" target="_blank">http://www.gazingus.org</a>)

if (!document.getElementById)
    document.getElementById = function() { return null; }



function Preload() {
     var args = simplePreload.arguments;
    document.imageArray = new Array(args.length);
    for(var i=0; i<args.length; i++) {
        document.imageArray[i] = new Image;
        document.imageArray[i].src = args[i];
    }
   }


   
 //²úÆ·Ïà¹Ø  
function hideAll()
{
document.getElementById("jz").style.display="none";
document.getElementById("gn").style.display="none";
document.getElementById("ys").style.display="none";
document.getElementById("al").style.display="none";
document.getElementById("jzi").style.background="url(images/jz01.gif)";
document.getElementById("gni").style.background="url(images/gn01.gif)";
document.getElementById("ysi").style.background="url(images/ys01.gif)";
document.getElementById("ali").style.background="url(images/al01.gif)";
}
function showFun(id)
{
 if(id==1) name="jz";
 if(id==2) name="gn";
 if(id==3) name="ys";
 if(id==4) name="al";
  hideAll();
  var imgname=name+"i";
  var imgurl=name+".gif";
  document.getElementById(name).style.display="";
  document.getElementById(imgname).style.background="url(images/"+imgurl+")";
}



function showFuns(id)
{
 if(id==1) name="jz";
 if(id==2) name="gg";
 if(id==3) name="sj";
 if(id==4) name="al";
  hideAlls();
  var imgname=name+"i";
  var imgurl=name+".gif";
  document.getElementById(name).style.display="";
  document.getElementById(imgname).style.background="url(images/"+imgurl+")";
}

//