function change(what) {
		if (what.id != "open") {
			what.id = "open";
			what.nextSibling.style.display = "block";
		}
		else {
			what.id = "";
			what.nextSibling.style.display = "none";
		}

	}

    function tree_init() {
        var get = document.location.search;
		if (qs)
		{
            if (document.getElementById(qs)) {
				
                var target = document.getElementById(qs).parentNode;
                target.style.display = "block";
                target.previousSibling.id = "open";
            }
        }
    }