/*Drop Down Tabs Menu- (c) Dynamic Drive DHTML code library (www.dynamicdrive.com)
This notice MUST stay intact for legal use
Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
Drop Down Tabs Menu- Author: Dynamic Drive (http://www.dynamicdrive.com) Created: May 16th, 07'*/
var tabdropdown={
	disappeardelay: 100,disablemenuclick:false,enableiframeshim:1,dropmenuobj:null,ie:document.all,firefox:document.getElementById&&!document.all,previousmenuitem:null,currentpageurl:window.location.href.replace("http://"+window.location.hostname,"").replace(/^\//, ""),//page url (minus hostname, ie: http://www.dynamicdrive.com/)
	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=drop down,obj2=item mouse is 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 (window.location.href=='http://www.calculated.com'||window.location.href=='http://www.calculated.com/'||window.location.href=='http://www.calculated.com/default.asp'){
		  if (dropmenuID=='dropmenu1_a'){// home page 
		      document.getElementById('iframe_shim2').style.display='block';document.getElementById('iframe_shim2').style.left='277px';document.getElementById('iframe_shim2').style.width='175px';document.getElementById('iframe_shim2').style.height='60px';
		  }else if (dropmenuID=='dropmenu2_a'){
			  document.getElementById('iframe_shim2').style.display='block';document.getElementById('iframe_shim2').style.left='421px';document.getElementById('iframe_shim2').style.width='175px';document.getElementById('iframe_shim2').style.height='175px';
		  }else if (dropmenuID=='dropmenu3_a'){ 
			  document.getElementById('iframe_shim2').style.display='block';document.getElementById('iframe_shim2').style.left='584px';document.getElementById('iframe_shim2').style.width='194px';document.getElementById('iframe_shim2').style.height='107px';
		  }// end home page
		}else{
		  try {document.getElementById('suggestions').style.display='none';} 
		  catch (sErr){ }
		  if (dropmenuID=='dropmenu2_a'){ // cover QPI under 'product support' menu -- ie6
			  document.getElementById('iframe_shim2').style.display='block';document.getElementById('iframe_shim2').style.left='-47px';document.getElementById('iframe_shim2').style.width='99px';document.getElementById('iframe_shim2').style.height='22px';
		  }else if (dropmenuID=='dropmenu3_a'){//reseller center
			  document.getElementById('iframe_shim2').style.display='block';document.getElementById('iframe_shim2').style.left='41px';document.getElementById('iframe_shim2').style.width='225px';document.getElementById('iframe_shim2').style.height='22px';
		  }
		}
		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 = 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
	    document.getElementById('iframe_shim2').style.display='none';
	},
	clearhidemenu:function(){
		if (this.delayhide!="undefined"){
			if (window.location.href=='http://www.calculated.com'||window.location.href=='http://www.calculated.com/'||window.location.href=='http://www.calculated.com/default.asp'){
			  if ((document.getElementById('dropmenu1_a').style.visibility=='visible')||(document.getElementById('dropmenu2_a').style.visibility=='visible')||(document.getElementById('dropmenu3_a').style.visibility=='visible'))
			  document.getElementById('iframe_shim2').style.display='block';  //flash
			} else {
			  if ((document.getElementById('dropmenu2_a').style.visibility=='visible')||(document.getElementById('dropmenu3_a').style.visibility=='visible'))
			  document.getElementById('iframe_shim2').style.display='block'; //'product support' and 'reseller center'
			}
			clearTimeout(this.delayhide);
		}
	},
	positionshim:function(){//display iframe shim function
	},
	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){
		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"
		}
	}
}
var menuItemSelected = 0;
function blockQPI(){
  try {window.document.getElementById('iframe_shim2').style.display='block';} 
  catch(err) { }
}
function unblockQPI(){
  try {window.document.getElementById('iframe_shim2').style.display='none';} 
  catch(err) { }
}
function selectedNav(sel_index){menuItemSelected = sel_index;}