var ar = new Array();
	function hide_element(clas) {
		ar = $$(clas);
		//ar = document.getElementsByClassName(clas);
		ar.each(function (el) {
			//alert(el);
			el.hide();
		});
	}
	
	function show_ul(id) {
		hide_element('ul.in');
		var el = $(id);
		//var el = id;
		var ul = el.down(1);
		ul.toggle();
	}
	
	function show_div(id) {
		hide_element('ul.in');
		hide_element('div.food');
		var el = $(id);
		if (el)
			el.toggle();
	}	
	
	function show_div2(id) {
		hide_element('div.food');
		var el = $(id);
		if (el)
			el.toggle();
	}	
	
function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
   if (anchor.getAttribute("href") &&
       anchor.getAttribute("rel") == "external")
     anchor.target = "_blank";
 }
}

window.onload = externalLinks;