function reloadPage() {
        location.reload();
        return true;
    }
    function loadPage(pageId) {
        location.href = "frontend.php?page="+pageId;
        return true;
    }
	
    function openWindow(url) {
		if(url=="") return true;
		if(url.indexof("http://")===0){ 
			var popup = window.open(url, "popup");
			popup.focus();
			return false;
		}else{
			location.href = url
			return true;
		}
    }