var level0Active = null;
var level1Active = null;
var level2Active = null;

function level0(menu) {

	if (level1Active!= null) {
		level1Active.className = "";		
		level1Active = null;
	}

	if (level0Active!= null) {
		level0Active.className = "";		
	}

	var unorderedList = menu.parentNode.getElementsByTagName("ul");
	level0Active = menu.parentNode;

	if(unorderedList.length > 0) {
		level0Active.className = "active";
	}

	else {
		level0Active.className = "active-noSubMenu";
	}
	
}

function level1(submenu) {

	if (level2Active!= null) {
		level2Active.className = "";		
		level2Active = null;
	}

	if (level1Active!= null) {
		level1Active.className = "";		
	}

	var unorderedList = submenu.parentNode.getElementsByTagName("ul");

	if(unorderedList.length > 0) {
		level1Active = submenu.parentNode;
		level1Active.className = "active-arrow";
	}
	
	else {
		level1Active = submenu.parentNode;
		level1Active.className = "active";	
	}

}

function level2(submenu) {

	if (level2Active!= null) {
		level2Active.className = "";		
	}

	level2Active = submenu.parentNode;
	level2Active.className = "active";	
}