var disappeardelay=250
var horizontaloffset=1
var mintopoffsetie6=144

var ie5=document.all
var ns6=document.getElementById&&!document.all
var ie = (navigator.appName=='Microsoft Internet Explorer') ? parseFloat((new RegExp("MSIE ([0-9]{1,}[.0-9]{0,})")).exec(navigator.userAgent)[1]) : -1

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){
  if (ie5||ns6)
    dropmenuobj.style.left=dropmenuobj.style.top=-500
  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=ie5 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
    dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
    if (windowedge-dropmenuobj.x-obj.offsetWidth < dropmenuobj.contentmeasure)
      edgeoffset=dropmenuobj.contentmeasure+obj.offsetWidth+(horizontaloffset*2)
  } else {
    var topedge=ie5 && !window.opera ? iecompattest().scrollTop : window.pageYOffset
    var windowedge=ie5 && !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;
      }
    }
  }
  return edgeoffset
}

function showHoverMenu(obj, e, dropmenuID){
  if (window.event)
    event.cancelBubble=true
  else
    if (e.stopPropagation) e.stopPropagation()
  if (typeof dropmenuobj!="undefined")
    dropmenuobj.style.visibility="hidden"
  clearhidemenu()
  if (ie5||ns6) {
    obj.onmouseout=delayhidemenu
    dropmenuobj=document.getElementById(dropmenuID)
    dropmenuobj.onclick=function(){dropmenuobj.style.visibility='hidden'}
    dropmenuobj.onmouseover=clearhidemenu
    dropmenuobj.onmouseout=ie5 ? function(){dynamichide(event)} : function(event){dynamichide(event)}
    showhide(dropmenuobj.style, e, "visible", "hidden")
    dropmenuobj.x=getposOffset(obj, "left")
    dropmenuobj.y=getposOffset(obj, "top")
    dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+obj.offsetWidth+horizontaloffset+"px"
    var top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")
    if (ie==6 && top<mintopoffsetie6) top = mintopoffsetie6
    dropmenuobj.style.top=top+"px"
  }
  return clickreturnvalue()
}

function clickreturnvalue() {
  if (ie5||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 (ie5&&!dropmenuobj.contains(e.toElement))
    delayhidemenu()
  else 
    if (ns6&&e.currentTarget!= e.relatedTarget&& !contains_ns6(e.currentTarget, e.relatedTarget))
      delayhidemenu()
}

function delayhidemenu() {
  delayhide=setTimeout("dropmenuobj.style.visibility='hidden'",disappeardelay)
}

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