var last = '';
	function hide(id){
		var obj = document.getElementById(id);
		obj.style.display=(obj.style.display=='none')?'':'none';
	}
	function showObject(id){
		var obj = document.getElementById(id);
		obj.style.display='';
	}
	function hideObject(id){
		var obj = document.getElementById(id);
		obj.style.display='none';
	}