var active = new Array();
var dropdowns = new Array();

function showmenu(element_id){
	
	if (get(element_id)){
		
		switch(get(element_id).style.display){
			
			case "block":
				active[element_id] = 0;
				setTimeout('hidemenu(\''+element_id+'\')', 1000);
			break;
			default:
				active[element_id] = 1;
				//killmenus();
				//setTimeout('hidemenu(\''+element_id+'\')', 1000);
				get(element_id).style.display='block';
			break;
		}
		
	}
	
}

function hidemenu(itemID){
	if (active[itemID] == 0){
		get(itemID).style.display='none';
	}
}

function stillactive(itemID){
	
	active[itemID] = 1;
	
}

function killmenus(){
	
	// var tokill = getelements('dropdown','ul');
	for (var i = 0; i < dropdowns.length; i++){
		if (get('menu'+dropdowns[i])){
			get('menu'+dropdowns[i]).style.display='none';
		}
	}
}
function get(elementID){
	if (document.getElementById(elementID)){ return document.getElementById(elementID); }
	else { return false; }
}

function getelements(name, tag) {

	// all elementen ophalen
	var elem = document.getElementsByTagName(tag);
	var arr = new Array();
	// loopen door elementen
	for(i = 0, iarr = 0; i < elem.length; i++){
		// checken of name overeen komt, zo wel, toevoegen aan array
		att = elem[i].getAttribute('name');
		if(att == name){
			arr[iarr] = elem[i];
			iarr++;
		}
	}
	return arr;
}