function ShowMenu(obj,_id){
	
	if(obj.className == 'close' || obj.className == ''){
		obj.className = 'open';
	}else{
		obj.className = 'close';
	}
	
	var elem = document.getElementById(_id);
	if(elem.style.display=='none' || elem.style.display==''){
		elem.style.display='block';
	}else{
		elem.style.display='none';
	}
}