function showTopDropBox(id1,id2)
{
  document.getElementById(id1).style.display = "block";
  document.getElementById(id2).style.display = "none";
  //  document.getElementById(id3).style.display = "none";

}

var tabdropdown={
 disappeardelay: 100, //set delay in miliseconds before menu disappears onmouseout
 disablemenuclick: false, //when user clicks on a menu item with a drop down menu, disable menu item's link?
 enableiframeshim: 1, //1 or 0, for true or false

 //No need to edit beyond here////////////////////////
 dropmenuobj: null, ie: document.all, firefox: document.getElementById&&!document.all, previousmenuitem:null,
 //currentpageurl: window.location.href.replace("http://"+window.location.hostname, "").replace(/^\//, ""),)

 getposOffset:function(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;
 },

 showhide:function(obj, e, obj2){ //obj refers to drop down menu, obj2 refers to tab menu item mouse is currently over
  if (this.ie || this.firefox)
   this.dropmenuobj.style.left=this.dropmenuobj.style.top="-500px"
  if (e.type=="click" && obj.visibility==hidden || e.type=="mouseover"){
   if (obj2.parentNode.className.indexOf("default")==-1) //if tab isn't a default selected one
    obj2.parentNode.className="selected"
   obj.visibility="visible"
   }
  else if (e.type=="click")
   obj.visibility="hidden"
 },

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

 clearbrowseredge:function(obj, whichedge){
  var edgeoffset=0
  if (whichedge=="rightedge"){
   var windowedge=this.ie && !window.opera? this.standardbody.scrollLeft+this.standardbody.clientWidth-15 : window.pageXOffset+window.innerWidth-15
   this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetWidth
  if (windowedge-this.dropmenuobj.x < this.dropmenuobj.contentmeasure)  //move menu to the left?
   edgeoffset=this.dropmenuobj.contentmeasure-obj.offsetWidth
  }
  else{
   var topedge=this.ie && !window.opera? this.standardbody.scrollTop : window.pageYOffset
   var windowedge=this.ie && !window.opera? this.standardbody.scrollTop+this.standardbody.clientHeight-15 : window.pageYOffset+window.innerHeight-18
   this.dropmenuobj.contentmeasure=this.dropmenuobj.offsetHeight
   if (windowedge-this.dropmenuobj.y < this.dropmenuobj.contentmeasure){ //move up?
    edgeoffset=this.dropmenuobj.contentmeasure+obj.offsetHeight
    if ((this.dropmenuobj.y-topedge)<this.dropmenuobj.contentmeasure) //up no good either?
     edgeoffset=this.dropmenuobj.y+obj.offsetHeight-topedge
   }
   this.dropmenuobj.firstlink.style.borderTopWidth=(edgeoffset==0)? 0 : "1px" //Add 1px top border to menu if dropping up
  }
  return edgeoffset
 },

 dropit:function(obj, e, dropmenuID){
  if (this.dropmenuobj!=null){ //hide previous menu
   this.dropmenuobj.style.visibility="hidden" //hide menu
   if (this.previousmenuitem!=null && this.previousmenuitem!=obj){
    if (this.previousmenuitem.parentNode.className.indexOf("default")==-1) //If the tab isn't a default selected one
     this.previousmenuitem.parentNode.className=""
   }
  }
  this.clearhidemenu()
  if (this.ie||this.firefox){
   obj.onmouseout=function(){tabdropdown.delayhidemenu(obj)}
   obj.onclick=function(){return !tabdropdown.disablemenuclick} //disable main menu item link onclick?
   this.dropmenuobj=document.getElementById(dropmenuID)
   this.dropmenuobj.onmouseover=function(){tabdropdown.clearhidemenu()}
   this.dropmenuobj.onmouseout=function(e){tabdropdown.dynamichide(e, obj)}
   this.dropmenuobj.onclick=function(){tabdropdown.delayhidemenu(obj)}
   this.showhide(this.dropmenuobj.style, e, obj)
   this.dropmenuobj.x=this.getposOffset(obj, "left")
   this.dropmenuobj.y=this.getposOffset(obj, "top")
   this.dropmenuobj.style.left=this.dropmenuobj.x-this.clearbrowseredge(obj, "rightedge")+"px"
   this.dropmenuobj.style.top=this.dropmenuobj.y-this.clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+1+"px"
   this.previousmenuitem=obj //remember main menu item mouse moved out from (and into current menu item)
   this.positionshim() //call iframe shim function
  }
 },

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

 dynamichide:function(e, obj2){ //obj2 refers to tab menu item mouse is currently over
  var evtobj=window.event? window.event : e
  if (this.ie&&!this.dropmenuobj.contains(evtobj.toElement))
   this.delayhidemenu(obj2)
  else if (this.firefox&&e.currentTarget!= evtobj.relatedTarget&& !this.contains_firefox(evtobj.currentTarget, evtobj.relatedTarget))
   this.delayhidemenu(obj2)
 },

 delayhidemenu:function(obj2){
  this.delayhide=setTimeout(function(){tabdropdown.dropmenuobj.style.visibility='hidden'; if (obj2.parentNode.className.indexOf('default')==-1) obj2.parentNode.className=''},this.disappeardelay) //hide menu
 },

 clearhidemenu:function(){
  if (this.delayhide!="undefined")
   clearTimeout(this.delayhide)
 },

 positionshim:function(){ //display iframe shim function
  if (this.enableiframeshim && typeof this.shimobject!="undefined"){
   if (this.dropmenuobj.style.visibility=="visible"){
    this.shimobject.style.width=this.dropmenuobj.offsetWidth+"px"
    this.shimobject.style.height=this.dropmenuobj.offsetHeight+"px"
    this.shimobject.style.left=this.dropmenuobj.style.left
    this.shimobject.style.top=this.dropmenuobj.style.top
   }
  this.shimobject.style.display=(this.dropmenuobj.style.visibility=="visible")? "block" : "none"
  }
 },

 hideshim:function(){
  if (this.enableiframeshim && typeof this.shimobject!="undefined")
   this.shimobject.style.display='none'
 },

isSelected:function(menuurl){
 var menuurl=menuurl.replace("http://"+menuurl.hostname, "").replace(/^\//, "")
 return (tabdropdown.currentpageurl==menuurl)
},

 init:function(menuid, dselected){
  if(dselected)
  {
  this.standardbody=(document.compatMode=="CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
  var menuitems=document.getElementById(menuid).getElementsByTagName("a")
  for (var i=0; i<menuitems.length; i++){
   if (menuitems[i].getAttribute("rel")){
    var relvalue=menuitems[i].getAttribute("rel")
    document.getElementById(relvalue).firstlink=document.getElementById(relvalue).getElementsByTagName("a")[0]
    menuitems[i].onmouseover=function(e){
     var event=typeof e!="undefined"? e : window.event
     tabdropdown.dropit(this, event, this.getAttribute("rel"))
    }
   }
   if (dselected=="auto" && typeof setalready=="undefined" && this.isSelected(menuitems[i].href)){
    menuitems[i].parentNode.className+=" selected default"
    var setalready=true
   }
   else if (parseInt(dselected)==i)
    menuitems[i].parentNode.className+=" selected default"
  }
  }
 }
      
};