//Chrome Drop Down Menu v2.01- Author: Dynamic Drive (http://www.dynamicdrive.com)
//Last updated: November 14th 06- added iframe shim technique

var cssdropdown={
disappeardelay: 250, //set delay in miliseconds before menu disappears onmouseout
disablemenuclick: true, //when user clicks on a menu item with a drop down menu, disable menu item's link?
enableswipe: 0, //enable swipe effect? 1 for yes, 0 for no
enableiframeshim: 1, //enable "iframe shim" technique to get drop down menus to correctly appear on top of controls such as form objects in IE5.5/IE6? 1 for yes, 0 for no

//No need to edit beyond here////////////////////////
dropmenuobj: null, ie: document.all, firefox: document.getElementById&&!document.all, swipetimer: undefined, bottomclip:0,

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;
},

swipeeffect:function(){

if (this.bottomclip<parseInt(this.dropmenuobj.offsetHeight)){
this.bottomclip+=10+(this.bottomclip/10) //unclip drop down menu visibility gradually
this.dropmenuobj.style.clip="rect(0 auto "+this.bottomclip+"px 0)"
}
else
return
this.swipetimer=setTimeout("cssdropdown.swipeeffect()", 10)
},

showhide:function(obj, e,objid){
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 (this.enableswipe==1){
if (typeof this.swipetimer!="undefined")
clearTimeout(this.swipetimer)
obj.clip="rect(0 auto 0 0)" //hide menu via clipping
this.bottomclip=0
this.swipeeffect()
}
if (objid == 'dropmenu0')
{
	document['news'].src = "images/news2.png";
}
if (objid == 'dropmenu1')
{
	document['cmpny'].src = "images/company2.png";
}
if (objid == 'dropmenu2')
{
	document['proj'].src = "images/projects2.png";
}
if (objid == 'dropmenu3')
{
	document['gamers'].src = "images/gamers2.png";
}
if (objid == 'dropmenu4')
{
	document['contact'].src = "images/contact2.png";
}


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.iecompattest().scrollLeft+this.iecompattest().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.iecompattest().scrollTop : window.pageYOffset
var windowedge=this.ie && !window.opera? this.iecompattest().scrollTop+this.iecompattest().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
}
}
return edgeoffset
},

dropit:function(obj, e, dropmenuID){
if (this.dropmenuobj!=null) //hide previous menu
{
	this.dropmenuobj.style.visibility="hidden" //hide menu
	params = getParams();
	if (params == null)
	{
	document['news'].src = "images/news3.png";
	document['cmpny'].src = "images/company1.png";
	document['proj'].src = "images/projects1.png";
	document['gamers'].src = "images/gamers1.png";
	document['contact'].src = "images/contact1.png";

	}
else
	{

	if(unescape(params["id"]) == 9)
	document['news'].src = "images/news3.png";
	else
	document['news'].src = "images/news1.png";
	if(unescape(params["id"]) == 1)
	document['cmpny'].src = "images/company3.png";
	else
	document['cmpny'].src = "images/company1.png";
	if(unescape(params["id"]) == 2)
	document['proj'].src = "images/projects3.png";
	else
	document['proj'].src = "images/projects1.png";

	if(unescape(params["id"]) == 3)
	document['gamers'].src = "images/gamers3.png";
	else
	document['gamers'].src = "images/gamers1.png";

	if(unescape(params["id"]) == 4)
	document['contact'].src = "images/contact3.png";
	else
	document['contact'].src = "images/contact1.png";
	}
}
this.clearhidemenu()
if (this.ie||this.firefox){
obj.onmouseout=function(){cssdropdown.delayhidemenu()}
obj.onclick=function(){return !cssdropdown.disablemenuclick} //disable main menu item link onclick?
this.dropmenuobj=document.getElementById(dropmenuID)
this.dropmenuobj.onmouseover=function(){cssdropdown.clearhidemenu()}
this.dropmenuobj.onmouseout=function(e){cssdropdown.dynamichide(e)}
this.dropmenuobj.onclick=function(){cssdropdown.delayhidemenu()}
this.showhide(this.dropmenuobj.style, e,dropmenuID)
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.positionshim() //call iframe shim function
}
},

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(){
params = getParams();
	if (params == null)
	{
	document['news'].src = "images/news3.png";
	document['cmpny'].src = "images/company1.png";
	document['proj'].src = "images/projects1.png";
	document['gamers'].src = "images/gamers1.png";
	document['contact'].src = "images/contact1.png";

	}
else
	{
	if(unescape(params["id"]) == 9)
	document['news'].src = "images/news3.png";
	else
	document['news'].src = "images/news1.png";
	if(unescape(params["id"]) == 1)
	document['cmpny'].src = "images/company3.png";
	else
	document['cmpny'].src = "images/company1.png";
	if(unescape(params["id"]) == 2)
	document['proj'].src = "images/projects3.png";
	else
	document['proj'].src = "images/projects1.png";

	if(unescape(params["id"]) == 3)
	document['gamers'].src = "images/gamers3.png";
	else
	document['gamers'].src = "images/gamers1.png";

	if(unescape(params["id"]) == 4)
	document['contact'].src = "images/contact3.png";
	else
	document['contact'].src = "images/contact1.png";
	}

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

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

dynamichide:function(e){
var evtobj=window.event? window.event : e
if (this.ie&&!this.dropmenuobj.contains(evtobj.toElement))
this.delayhidemenu()
else if (this.firefox&&e.currentTarget!= evtobj.relatedTarget&& !this.contains_firefox(evtobj.currentTarget, evtobj.relatedTarget))
this.delayhidemenu()
},

delayhidemenu:function(){
this.delayhide=setTimeout("cssdropdown.dropmenuobj.style.visibility='hidden'; cssdropdown.hideshim()",this.disappeardelay) //hide menu
},

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

startchrome:function(){
	/*
	news1 		= new Image();
	news2 		= new Image();
	news3 		= new Image();
	company1 	= new Image();
	company2 	= new Image();
	company3 	= new Image();
	projects1 	= new Image();
	projects2 	= new Image();
	projects3 	= new Image();
	gamers1 	= new Image();
	gamers2 	= new Image();
	gamers3 	= new Image();
	contact1 	= new Image();
	contact2 	= new Image();
	contact3 	= new Image();
	
	news1.src 		= 'images/news1.png';
	news2.src 		= 'images/news2.png';
	news3.src 		= 'images/news3.png';
	company1.src 	= 'images/company1.png';
	company2.src 	= 'images/company2.png';
	company3.src 	= 'images/company3.png';
	projects1.src 	= 'images/projects1.png';
	projects2.src 	= 'images/projects2.png';
	projects3.src 	= 'images/projects3.png';
	gamers1.src		= 'images/gamers1.png';
	gamers2.src		= 'images/gamers2.png';
	gamers3.src 	= 'images/gamers3.png';
	contact1.src 	= 'images/contact1.png';
	contact2.src 	= 'images/contact2.png';
	contact3.src 	= 'images/contact3.png';
	
   */
for (var ids=0; ids<arguments.length; ids++){
var menuitems=document.getElementById(arguments[ids]).getElementsByTagName("a")
for (var i=0; i<menuitems.length; i++){
if (menuitems[i].getAttribute("rel")){
var relvalue=menuitems[i].getAttribute("rel")
menuitems[i].onmouseover=function(e){
var event=typeof e!="undefined"? e : window.event
cssdropdown.dropit(this,event,this.getAttribute("rel"))
}
}
}
}
if (window.createPopup && !window.XmlHttpRequest){ //if IE5.5 to IE6, create iframe for iframe shim technique
document.write('<IFRAME id="iframeshim"  src="" style="display: none; left: 0; top: 0; z-index: 90; position: absolute; filter: progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)" frameBorder="0" scrolling="no"></IFRAME>')
this.shimobject=document.getElementById("iframeshim") //reference iframe object
}
}

}

function getParams() 
{
var idx = document.URL.indexOf('?');
var params = new Array();
if (idx != -1) 
{
var pairs = document.URL.substring(idx+1, document.URL.length).split('&');
for (var i=0; i<pairs.length; i++) 
{
nameVal = pairs[i].split('=');
params[nameVal[0]] = nameVal[1];
   }
}
if (idx == -1)
return null;
else
return params;
}