var ie4=document.all
var ns6=document.getElementById&&!document.all

if (ie4||ns6)
document.write('<div id="dropmenudiv" style="visibility:hidden;width:'+menuwidth+';background-color:'+menubgcolor+'" onMouseover="clearhidemenu()" onMouseout="dynamichide(event)"></div>')

function getposOffset(what, offsettype)
{
     var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
     var parentEl=what.offsetParent;
     while (parentEl!=null){
          totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
          parentEl=parentEl.offsetParent;
     }
     return totaloffset;
}

function showhide(obj, e, visible, hidden, menuwidth){
     if (ie4||ns6)
          dropmenuobj.style.left=dropmenuobj.style.top="-500px"
     if (menuwidth!="")
     {
          dropmenuobj.widthobj=dropmenuobj.style
          dropmenuobj.widthobj.width=menuwidth
     }
     if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover")
          obj.visibility=visible
     else if (e.type=="click")
          obj.visibility=hidden
}

function iecompattest()
{
     return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
     var edgeoffset=0
     if (whichedge=="rightedge")
     {
          var windowedge=ie4 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
          dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
          if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
          edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth
     }
     else
     {
          var topedge=ie4 && !window.opera? iecompattest().scrollTop : window.pageYOffset
          var windowedge=ie4 && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
          dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
          if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure)
          {
               edgeoffset=dropmenuobj.contentmeasure+obj.offsetHeight
               if ((dropmenuobj.y-topedge)<dropmenuobj.contentmeasure)
                    edgeoffset=dropmenuobj.y+obj.offsetHeight-topedge
          }
     }
     return edgeoffset
}

function populatemenu(what){
     if (ie4||ns6)
          dropmenuobj.innerHTML=what.join("")
}


function dropdownmenu(obj, e, menucontents, menuwidth){
     if (window.event) event.cancelBubble=true
     else if (e.stopPropagation) e.stopPropagation()
     clearhidemenu()
     dropmenuobj=document.getElementById? document.getElementById("dropmenudiv") : dropmenudiv
     populatemenu(menucontents)

     if (ie4||ns6)
     {
          showhide(dropmenuobj.style, e, "visible", "hidden", menuwidth)
          dropmenuobj.x=getposOffset(obj, "left")
          dropmenuobj.y=getposOffset(obj, "top")
          dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
          dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
     }
     return clickreturnvalue()
}

function clickreturnvalue(){
     if (ie4||ns6) return false
     else return true
}

function contains_ns6(a, b) {
     while (b.parentNode)
          if ((b = b.parentNode) == a)
               return true;
     return false;
}

function dynamichide(e){
     if (ie4&&!dropmenuobj.contains(e.toElement))
          delayhidemenu()
     else if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
          delayhidemenu()
}

function hidemenu(e){
     if (typeof dropmenuobj!="undefined")
     {
          if (ie4||ns6)
               dropmenuobj.style.visibility="hidden"
     }
}

function delayhidemenu(){
     if (ie4||ns6)
          delayhide=setTimeout("hidemenu()",disappeardelay)
}

function clearhidemenu(){
     if (typeof delayhide!="undefined")
          clearTimeout(delayhide)
}

if (hidemenu_onclick=="yes")
     document.onclick=hidemenu