function opens(obj){
		var divId = document.getElementById(obj);
		divId.style.display = "";
	}
	function displays(obj){
		var divId = document.getElementById(obj);
		divId.style.display = "none";
	}
	function get_color(obj){
		var divId = document.getElementById(obj);
		divId.style.background = "#CC0000";
	}
	function clear_color(obj){
		var divId = document.getElementById(obj);
		divId.style.background = "#999999";//666666
	}
	function clear_color2(obj){
		var divId = document.getElementById(obj);
		divId.style.background = "#aaa";//999999
	}