//NEW FUNCTIONALITY
var menus = new Array();
var g_Timer;

function ActivateMenu(id) {
	menus.push(id);
	DeactivateMenus(id);
}

function ActivateSubMenu(element, id) {
	if(document.layers) {
		if(document.layers[id] != null)
			document.layers[id].posTop = element.offsetTop;
	}
	else if(document.all) {
		if(document.all[id] != null)
			document.all[id].style.posTop = element.offsetTop;
	}
	else if(document.getElementById) {
		if(document.getElementById(id) != null)
			document.getElementById(id).style.posTop = element.offsetTop;
	}
	
	if(menus != null) {
		if(menus.length > 1) {
			if(id.length == menus[menus.length-1])
				menus.pop();
		}
	}
	
	menus.push(id);
	DeactivateMenus(id);
}

function DeactivateMenus(id) {
	var keep;		//boolean keep vis value
	var keepids;	//string of ids to make vis
	var keepName;	//name to make vis
	var aryKeeps = new Array(); //new 'menus' once complete\
	if(id == null){
		//Hide all
		if(menus != null) {
			for(i=0; i<menus.length; i++)
				MakeHidden(menus[i]);
		}
	} 
	else{
		keepids = id.split("_");
		for(i=0; i<menus.length; i++){
			keepName = keepids[0];
			keep = false;
			
			for(j=0; j<keepids.length; j++){
				
				if(j > 0)
					keepName = keepName + "_" + keepids[j];
				
				if(menus[i] == keepName){
					keep = true
					aryKeeps.push(menus[i]);
					break;
				}
			}
			if(keep)
				MakeVisible(menus[i]);
			else
				MakeHidden(menus[i]);		
		}
		menus = aryKeeps;
	}
}

function MakeVisible(id) {
	if(document.layers) {
		if(document.layers[id] != null)
			document.layers[id].visibility = 'visible';
	}
	else if(document.all) {
		if(document.all[id] != null)
			document.all[id].style.visibility = 'visible';
	}
	else if(document.getElementById) {
		if(document.getElementById[id] != null)
			document.getElementById[id].style.visibility = 'visible';
	}
}

function MakeHidden(id) {
	if(document.layers) {
		if(document.layers[id] != null)
			document.layers[id].visibility = 'hidden'; 
	}
	else if(document.all) {
		if(document.all[id] != null)
			document.all[id].style.visibility = 'hidden'; 
	}
	else if(document.getElementById) {
		if(document.getElementById[id] != null)
			document.getElementById[id].style.visibility = 'hidden'; 
	}
}

// DHTML MENU INIT VARS
var nav_default = '';
var nav_active = nav_default

// RESET MENU
function ResetNav(){
	HideLayer('navresetbot');
	HideActiveNav();
	//Hide all
	if(menus != null) {
		for(i=0; i<menus.length; i++)
			MakeHidden(menus[i]);
	}
	if (nav_default!='') {
		ShowLayer(nav_default+'subnav');
	}
	nav_active = nav_default;
}

// DISPLAY MENU
function ShowNav(navname){
	HideActiveNav();
	ShowLayer('navresetbot');
	ShowLayer(navname);
	nav_active = navname;
}
function ShowLayer(layername){
	// document.all IE
	if (document.all){
		document.getElementById(layername).style.visibility = 'visible';
	}
	else if (document.layers){
 		document.layers[layername].visibility = 'visible';
	}
	// gecko
	else {
		var myLayer = document.getElementById(layername);
		myLayer.style.visibility = 'visible';
	}
}

// HIDE MENU
function HideActiveNav(){
	if (nav_active!=''){
		HideLayer(nav_active);
	}
}
function HideLayer(layername){
	if (document.all){
		document.getElementById(layername).style.visibility = 'hidden';
	}
	else if (document.layers){
		document.layers[layername].visibility = 'hidden';
	}
	else {
		var myLayer = document.getElementById(layername);
		myLayer.style.visibility = 'hidden'
	}
}