var PageLoader = {};
PageLoader.loader = function () {
    var memo = {};
    var load = function (url, place) {
        var result = memo[url];
        if (typeof result == 'undefined') {
			$.ajax({
				url: _urlSite + 'ajax/' + url, 
				success: function(data) {
						$('#' + place).append(data);
					}
			});
            memo[url] = true;
        }
        return result;
    };
    return load;
}();