// http://www.interspire.com/content/articles/10/1/Building-An-Expanding-DHTML-Menu-With-CSS-and-JavaScript
//

menu_status = new Array();

//holds the id of the last resource that was opened.
var last_expanded = '';


function showHide(id) {
	var obj = document.getElementById(id);
	var status = obj.className;

	if (status == 'hide') {

		if (last_expanded != '') {
			var last_obj = document.getElementById(last_expanded);
			last_obj.className = 'hide';
		}

		obj.className = 'show';
		last_expanded = id;
	} else {
		obj.className = 'hide';
	}
}