var flag
function closeDivArea(name, name2){
	if (this[name+"_flag"]==undefined){
		this[name+"_flag"] = false
	}
	this[name+"_flag"] = !this[name+"_flag"];
	var obj = document.getElementById(name);
	obj.style.display = (this[name+"_flag"]==false)? "" : "none";
	
	var obj = document.getElementById(name2);
	obj.innerHTML = (this[name+"_flag"]==false)? "close this frame" : "open this frame";
}