$(document).ready(function(){
	$("#treenav").treeview({
		persist: "location",
		collapsed: true,
		unique: true
	});	
	if (location.href.indexOf("?") < 0) {	// initial page load
		// expand first category
		var firstitem = $("ul#treenav>li:eq(0)");
		if ($("ul", firstitem).length > 0) {	// nested link
			$(">div.hitarea", firstitem).trigger('click');
			// highlight first item in this category
			$("li:eq(0)>a", firstitem).addClass('selected');
		}
		else {	// flat link
			$(firstitem).addClass('selected');
		}
	}
	$("#treenav").show();
	
});