//when go to page children ul's closed
//when click on title opens child ul
//when click on title again child ul closes

function navigation_display(triggerID) {
	var triggerElement = document.getElementById(triggerID);
	var targetElement = document.triggerElement.firstChild;
	if(targetElement) {
		if(targetElement.className == 'off') { 
			navigation_close();
			targetElement.className = 'on'; 
		}
		else { 
			targetElement.className = 'off'; 
		}
	}
}

function navigation_close() {
	var triggersID = new Array();
	var triggerElement;
	var targetElement;
	triggersID = ("fcoe");
	
	for(i=0;i < triggersID.length; i++) {
		triggerElement = document.getElementById(triggersID[i]);
		targetElement = triggerElement.firstChild;
		targetElement.className = 'off';		
	}
}