var expand = {};

expand.display_true = "block";
expand.current_element;

expand.menu = function(id){
	expand.current_element = document.getElementById(id);
	if(expand.current_element.style.display != expand.display_true){
		expand.current_element.style.display = expand.display_true;
	}
}

var collapse = {};

collapse.display_false = "none";
collapse.current;

collapse.menu = function(id){
	collapse.current = document.getElementById(id);
	 if(collapse.current.style.display != collapse.display_false){
	 	collapse.current.style.display = collapse.display_false;
	 }
}