var disappeardelay   = 250;  //menu disappear speed onMouseout (in miliseconds)
var enableanchorlink = 0; //Enable or disable the anchor link when clicked on? (1=e, 0=d)
var hidemenu_onclick = 1; //hide menu when user clicks within menu? (1=yes, 0=no)
var horizontaloffset = 1; //horizontal offset of menu from default location. (0-5 is a good value)
var dropmenuobj;
var delayhide;
var iframeobj = document.getElementById('DivShim');
/////No further editting needed

var ie5=document.all;
var ns6=document.getElementById&&!document.all;

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 DivSetVisible(state, obj)
{
   var DivRef = obj;
   var IfrRef = iframeobj;
   if(state)
   {
     DivRef.style.display = "block";
     if (BrowserDetect.browser == "Explorer"){
       IfrRef.style.width = DivRef.offsetWidth;
       IfrRef.style.height = DivRef.offsetHeight;
       IfrRef.style.top = DivRef.style.top;
       IfrRef.style.left = DivRef.style.left;
       IfrRef.style.zIndex = 99;
       IfrRef.style.display = "block";
     }
   }
   else
   {
     DivRef.style.display = "none";
     if (BrowserDetect.browser == "Explorer"){
       IfrRef.style.display = "none";
	   }
   }
}

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;
    if (BrowserDetect.browser == "Explorer" && dropmenuobj.childNodes > 0){
      iframeobj.style.visibility = visible;
    }
    return true;
  } else if (e.type=="click")  { 
    obj.visibility = hidden;
    if (BrowserDetect.browser == "Explorer" && dropmenuobj.childNodes > 0){
      iframeobj.style.visibility = hidden;
    }
    return false;
  }
}

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); //no space to the right of page? Move menu over to the left
    }
  } 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) { //move menu up?
      edgeoffset = dropmenuobj.contentmeasure - obj.offsetHeight;
      if ((dropmenuobj.y - topedge) < dropmenuobj.contentmeasure) { //up no good either? (position at top of viewable window then)
        edgeoffset = dropmenuobj.y;
      }
    }
  }
  return edgeoffset;
}

function dropdownmenu(obj, e, dropmenuID){
  if (window.event) {
    event.cancelBubble = true;
  } else if (e.stopPropagation) { 
    e.stopPropagation();
  }
  
  if (typeof dropmenuobj!="undefined") { //hide previous menu
    dropmenuobj.style.visibility = "hidden";
  }
  clearhidemenu();
  if (ie5||ns6){
    obj.onmouseout = delayhidemenu;
    dropmenuobj = document.getElementById(dropmenuID);
    iframeobj   = document.getElementById('DivShim');
    if (hidemenu_onclick) { 
      dropmenuobj.onclick = function(){dropmenuobj.style.visibility='hidden'};
    }
    dropmenuobj.onmouseover = clearhidemenu;
    dropmenuobj.onmouseout  = (ie5) ? function(){ dynamichide(event)} : function(event){ dynamichide(event)};
    var state = showhide(dropmenuobj.style, e, "visible", "hidden", dropmenuobj);
    dropmenuobj.x = getposOffset(obj, "left");
    dropmenuobj.y = getposOffset(obj, "top");
    dropmenuobj.style.left = dropmenuobj.x - clearbrowseredge(obj, "rightedge")
                       + obj.offsetWidth+horizontaloffset + "px";
    dropmenuobj.style.top = dropmenuobj.y - clearbrowseredge(obj, "bottomedge") + "px";     
     DivSetVisible(state, dropmenuobj);
  }
  return clickreturnvalue();
}

function clickreturnvalue(){
  if ((ie5||ns6) && !enableanchorlink){ 
    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("hideMenuAndIframe()",disappeardelay);
}

function hideMenuAndIframe(){
  dropmenuobj.style.visibility = 'hidden';
  if (BrowserDetect.browser == "Explorer"){
    iframeobj.style.visibility='hidden';  
  }
}

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

var BrowserDetect = {
  init: function () {
    this.browser = this.searchString(this.dataBrowser) || "An unknown browser";
    this.version = this.searchVersion(navigator.userAgent)
      || this.searchVersion(navigator.appVersion)
      || "an unknown version";
    this.OS = this.searchString(this.dataOS) || "an unknown OS";
  },
  searchString: function (data) {
    for (var i=0;i<data.length;i++)  {
      var dataString = data[i].string;
      var dataProp = data[i].prop;
      this.versionSearchString = data[i].versionSearch || data[i].identity;
      if (dataString) {
        if (dataString.indexOf(data[i].subString) != -1)
          return data[i].identity;
      }
      else if (dataProp)
        return data[i].identity;
    }
  },
  searchVersion: function (dataString) {
    var index = dataString.indexOf(this.versionSearchString);
    if (index == -1) return;
    return parseFloat(dataString.substring(index+this.versionSearchString.length+1));
  },
  dataBrowser: [
    {   string: navigator.userAgent,
      subString: "OmniWeb",
      versionSearch: "OmniWeb/",
      identity: "OmniWeb"
    },
    {
      string: navigator.vendor,
      subString: "Apple",
      identity: "Safari"
    },
    {
      prop: window.opera,
      identity: "Opera"
    },
    {
      string: navigator.vendor,
      subString: "iCab",
      identity: "iCab"
    },
    {
      string: navigator.vendor,
      subString: "KDE",
      identity: "Konqueror"
    },
    {
      string: navigator.userAgent,
      subString: "Firefox",
      identity: "Firefox"
    },
    {
      string: navigator.vendor,
      subString: "Camino",
      identity: "Camino"
    },
    {    // for newer Netscapes (6+)
      string: navigator.userAgent,
      subString: "Netscape",
      identity: "Netscape"
    },
    {
      string: navigator.userAgent,
      subString: "MSIE",
      identity: "Explorer",
      versionSearch: "MSIE"
    },
    {
      string: navigator.userAgent,
      subString: "Gecko",
      identity: "Mozilla",
      versionSearch: "rv"
    },
    {     // for older Netscapes (4-)
      string: navigator.userAgent,
      subString: "Mozilla",
      identity: "Netscape",
      versionSearch: "Mozilla"
    }
  ],
  dataOS : [
    {
      string: navigator.platform,
      subString: "Win",
      identity: "Windows"
    },
    {
      string: navigator.platform,
      subString: "Mac",
      identity: "Mac"
    },
    {
      string: navigator.platform,
      subString: "Linux",
      identity: "Linux"
    }
  ]

};
BrowserDetect.init();