NS4 = (document.layers) ? 1 : 0;
IE4 = (document.all) ? 1 : 0;
ver4 = (NS4 || IE4) ? 1 : 0;

if (ver4) {
    with (document) {
        write("<STYLE TYPE='text/css'>");
        if (NS4) {
            write(".parent  {position:absolute; visibility:visible}");
            write(".child   {position:absolute; visibility:visible}");
            write(".regular {position:absolute; visibility:visible}")
        }
        else {
            write(".child {display:block}")
        }
        write("</STYLE>");
    }
}

function getIndex(el) {
    ind = null;
    for (i=0; i<document.layers.length; i++) {
        whichEl = document.layers[i];
        if (whichEl.id == el) {
            ind = i;
            break;
        }
    }
    return ind;
}

function arrange() {
    nextY = document.layers[firstInd].pageY +document.layers[firstInd].document.height;
    for (i=firstInd+1; i<document.layers.length; i++) {
        whichEl = document.layers[i];
        if (whichEl.visibility != "hide") {
            whichEl.pageY = nextY;
            nextY += whichEl.document.height;
        }
    }
}

function initIt(){
    if (!ver4) return;
    if (NS4) {
        for (i=0; i<document.layers.length; i++) {
            whichEl = document.layers[i];
            if (whichEl.id.indexOf("Child") != -1) whichEl.visibility = "block";
       }
        arrange();
    }
    else {
        divColl = document.all.tags("DIV");
        for (i=0; i<divColl.length; i++) {
            whichEl = divColl(i);
            if (whichEl.className == "child") whichEl.style.display = "none";
        }
    }
}

function expandIt(el) {
    if (!ver4) return;
    if (IE4) {
        whichEl   = eval(el + "Child");
        whickLogo = eval(el + "logo");
        if (whichEl.style.display == "block") 
        { 
          whichEl.style.display = "none";
          whickLogo.src="../images/tree01.gif";
		  document.all.divdefault.style.display="none";  //本句专用于关闭默认菜单层
        }
        else
        { 
          whichEl.style.display = "block";
          whickLogo.src="../images/tree02.gif";
        }
    }
    else {
        whichEl   = eval("document." + el + "Child");
        whichLogo = eval("document." + el + "logo");
        if (whichEl.visibility == "show")
        {
          whichEl.visibility = "none";
          whickLogo.src="../images/tree01.gif";
        }
        else 
        {
          whichEl.visibility = "block";
          whickLogo.src="../images/tree02.gif";
        }
        arrange();
    }
}
//onload = initIt;


  
  function MM_findObj(n, d)
  {
    var p,i,x;
    if(!d) d=document;
    if((p=n.indexOf("?"))>0&&parent.frames.length)
    {
      d=parent.frames[n.substring(p+1)].document;
      n=n.substring(0,p);
    }
    if(!(x=d[n])&&d.all) x=d.all[n];
    for(i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
    for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
    if(!x && document.getElementById) x=document.getElementById(n);
    return x;
  }

  function MM_showHideLayers()
  {
    var i,p,v,obj,args=MM_showHideLayers.arguments;
    for (i=0; i<(args.length-2); i+=3)
      if ((obj=MM_findObj(args[i]))!=null)
      {
        v=args[i+2];
        if (obj.style)
        {
          obj=obj.style;
          v=(v=='show')?'visible':(v='hide')?'hidden':v;
        }
        obj.visibility=v;
      }
  }
  
  function menuover(id,divid)
  {
    //id.className = id.className + "a";
    id.style.cursor="hand";
    MM_showHideLayers(divid,'','show');
  }
  
  function menuout(id,divid)
  {
    ss = id.className;
    //id.className = ss.substring(0,ss.length-1);
    id.style.cursor="default";
    MM_showHideLayers(divid,'','hide');
  }
  
  function menuclick(url,sort)
  {
    if(sort==1)
    {
      window.open(url,"_blank","width=500,height=300");
    }
    if(sort==2)
    {
      window.open(url,"_self","");
    }
    if(sort==3)
    {
      window.opener="loginWindow";
      window.close();
    }
    if(sort==4)
    {
      document.all.myframe.src=url;
    }
    if(sort==5)
    {
      //alert("更换 IFRAME 中左边 FRAME 地址!!");
      var collAll = document.frames("myframe").document.all 
      collAll.leftframe.src=url
    }
    if(sort==6)
    {
      //alert("更换 IFRAME 中右边 FRAME 地址!!");
      var collAll = document.frames("myframe").document.all 
      collAll.mainframe.src=url
    }
  }