function showSub(subID) 
{
	var id = subID;
	subID = "smenu" + subID;
	
	var oSubMenu = document.getElementById(subID)
	var oMainMenu = document.getElementById(subID.replace('smenu','menu'))

	if (oMainMenu) {
		if (oMainMenu.className != 'menuItem_Selected') {
			oMainMenu.className = 'menuItem menuItem_Hover';
		}
	}

	
	if (oSubMenu)
	{
		//var oMainMenu = document.getElementById(subID.replace('smenu','menu'))
		//check if the submenu has items
		if (oSubMenu.getElementsByTagName('a').length > 0) {
			if (oSubMenu)
				oSubMenu.style.visibility = 'visible';
		}
	}
}

function hideSub(subID) 
{
	var id = subID;
	subID = "smenu" + subID;
	
	var oSubMenu = document.getElementById(subID)
	var oMainMenu = document.getElementById(subID.replace('smenu','menu'))
	if (oSubMenu)
		oSubMenu.style.visibility = 'hidden';
	
	if (oMainMenu) {
		if (oMainMenu.className != 'menuItem_Selected') 
			oMainMenu.className = 'menuItem';					
	}
}


function subMenuMouseOut(oSubMenuItem)
{
	oSubMenuItem.className = 'menuSubItem';
}

function subMenuMouseOver(oSubMenuItem)
{
	oSubMenuItem.className = 'menuSubItem menuSubItem_Hover';
}



if (typeof($) != 'undefined') {
	$(document).ready(function(){

		$('.menuSubItem_Container').mouseover(function(){
			showSub(this.id.replace('smenu',''));
		});
		
		$('.menuSubItem_Container').mouseout(function(){
			hideSub(this.id.replace('smenu',''));
		});

		$('.menuItem').mouseover(function() {
			showSub(this.id.replace('menu',''));
		});
		
		$('.menuItem').mouseout(function() {
			hideSub(this.id.replace('menu',''));
		});
		
	});
} else {
	alert ('menu error: jquery was not included!');
}


/*
var selMnu = null
var selSubMnu = null
var activeMnu = null //main menu item corresponding to the page being displayed


function mnuSaveActive(id) {
    //save clicked main menuitem to cookie
    createCookie('mnuactive',id,0)  //0: cookie is trashed when the user closes the browser
}

function mnuSetActiveItem() {
    //hilite the selected main menu item, which was saved to a cookie
    var id = readCookie('mnuactive');
    if (id) {
        activeMnu = document.getElementById('nav' + id);
        if (activeMnu) {
            activeMnu.className = 'nav navActive';
        }    
    }
}

*/