/***********************************************
* AnyLink Drop Down Menu- © Dynamic Drive (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for full source code
************************************************
* This code has been modified to fit standards and been formatted
* correctly. (Greg Poole - greg@desigfx.com), in addition to having extra
* functionality added
***********************************************/

var ie4=document.all;
var ns6=document.getElementById&&!document.all;

function menu_preload() {
	if (ie4||ns6) {
		if(document.createElement) {
			var divobj=document.createElement("div");
			divobj.id="dropmenudiv";
			divobj.className="dropmenu";
			divobj.style.position="absolute";
			divobj.style.visibility="hidden"
			divobj.onmouseover=clearhidemenu;
			divobj.onmouseout=dynamichide;
			document.body.appendChild(divobj);
			dropmenuobj=divobj;
		} else {
			document.write('<div id="dropmenudiv" style="position:absolute;visibility:hidden;width:'+menuwidth+';background-color:'+menubgcolor+'" onMouseover="clearhidemenu()" onMouseout="dynamichide(event)"></div>')
		}
	}
	if (hidemenu_onclick=="yes")
		document.onclick=hidemenu
}

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, menuwidth) {
	if (ie4||ns6)
		dropmenuobj.style.left=dropmenuobj.style.top=-500;

	if(ie4)
		showSelects();
	
	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=ie4 && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15;
		dropmenuobj.contentmeasure=dropmenuobj.offsetWidth;
		if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
			edgeoffset=dropmenuobj.contentmeasure-obj.offsetWidth;
	} else {
		var topedge=ie4 && !window.opera? iecompattest().scrollTop : window.pageYOffset;
		var windowedge=ie4 && !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+obj.offsetHeight-topedge;
		}
	}
	return edgeoffset;
}

function dropdownmenu(obj, e, menuid,className,width,xoffset,yoffset) {
	if (window.event) event.cancelBubble=true;
	else if (e.stopPropagation) e.stopPropagation();
	clearhidemenu();
	//dropmenuobj=document.getElementById? document.getElementById("dropmenudiv") : dropmenudiv;
	
	var menu=mainMenu.getMenuById(menuid);
	if(menu) menu.populateObject(dropmenuobj);
	else return false;
	
	if(!xoffset)
		xoffset=0;
	if(!yoffset)
		yoffset=0;
	
	if (ie4||ns6){
		showhide(dropmenuobj.style, e, "visible", "hidden", menu.width);
		dropmenuobj.x=getposOffset(obj, "left");
		dropmenuobj.y=getposOffset(obj, "top");
		dropmenuobj.className=className;
		dropmenuobj.style.width=width;
		dropmenuobj.style.left=(dropmenuobj.x+xoffset)-clearbrowseredge(obj, "rightedge")+"px";
		dropmenuobj.style.top=(dropmenuobj.y+yoffset)-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px";
	}
	
	if(ie4)
		hideSelects("hidden");
	
	return clickreturnvalue();
}

function clickreturnvalue(){
	if (ie4||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) {
	delayhidemenu();
}

function hidemenu(e) {
	if (dropmenuobj!=null) {
		if (ie4||ns6)
			dropmenuobj.style.visibility="hidden"
		if(ie4)
			showSelects();
	}
}


// Hack: hides select boxes in IE because they draw over the top of everything
function hideSelects() {
	if(ie4) {
		var selects=document.getElementsByTagName("select");
		for(var i=0;i<selects.length;i++) {
			if((parseInt(dropmenuobj.style.left)+dropmenuobj.clientWidth)>getposOffset(selects[i],"left")) {
				if((parseInt(dropmenuobj.style.top)+dropmenuobj.clientHeight)>getposOffset(selects[i],"top")) {
					selects[i].style.visibility="hidden";
					selects[i].hiddenForMenu=true;
				}
			}
		}
	}
}

function showSelects() {
	var selects=document.getElementsByTagName("select");
	for(var i=0;i<selects.length;i++) {
		if(selects[i].hiddenForMenu)
			selects[i].style.visibility="visible";
	}
}

function delayhidemenu() {
	if (ie4||ns6)
		delayhide=setTimeout("hidemenu()",disappeardelay)
}

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

function MenuBar() {
	this.menus=new Array();
	this.m_Pointer=0;
	
	this.addMenu=function(menu) {
		this.menus[this.m_Pointer++]=menu;
	}
	
	this.removeMenu=function(menu) {
		for(var i=0;i<this.menus.length;i++) {
			if(this.menus[i]==menu)
				this.menus[i]=false;
		}	
	}
	
	this.getMenuById=function(id) {
		for(var i=0;i<this.menus.length;i++) {
			if(this.menus[i].id==id)
				return this.menus[i];
		}
		return false;
	}
}

function Menu(id,width) {
	this.id=id;
	this.width=0;
	if(width) this.width=width;
	this.items=new Array();
	this.o_Pointer=0;
	
	this.addMenuItem=function(item) {
		this.items[this.o_Pointer++]=item;
	}
	
	this.removeMenuItem=function(item) {
		for(var i=0;i<this.items.length;i++) {
			if(this.items[i]==item)
				this.items[i]=false;
		}
	}
	
	this.populateObject=function(objRef) {
		if(!objRef)
			return;
		
		var elems=objRef.childNodes;
		var length=objRef.childNodes.length;
		for(var i=0;objRef.hasChildNodes && i<length;i++) {
			if(objRef.firstChild)
				objRef.removeChild(objRef.firstChild);
		}
		
		for(var i=0;i<this.items.length;i++) {
			if(this.items[i]) {
				var t_Elem=document.createElement("a");
				t_Elem.href=this.items[i].link;
				// And while in vain I tried to use DOM to conform to w3 standards,
				// ie yet again beat me down and forced me to use a STUPID hack.
				t_Elem.innerHTML="<font color='"+linkColour+"'>"+this.items[i].text+"</a>";
				objRef.appendChild(t_Elem);
			}
		}
	}
}

function MenuItem(link,text) {
	this.link=link;
	this.text=text;
}