jQuery Code

<script>
            $(function() {
                var queries = [];
                $("#searchBox").autocomplete({
                    source: function(request, response) {
                        var resp = [{
                            label:"חיפוש חופשי: "  + term,
                            value: term,
                            url: location.protocol + '//' + location.host + "/?s=" + request.term
                        }];
                        var q = $.ajax({
                            url: "http://hebrew-academy.org.il/wp-admin/admin-ajax.php",
                            dataType: "json",
                            data: {
                                action: 'autocompleteCallback',
                                term: request.term
                            },
                            success: function(data) {
                                console.log(typeof(data));
                                var d = $.map(data.results, function(item){
                                    var title = $("<div />").html(item.title).text();
                                    return {
                                        label: title,
                                        url: item.url
                                    }
                                });
                                Array.prototype.push.apply(resp, d);
                            },
                            error: function(jqXHR, textStatus, errorThrown) {
                                console.log(jqXHR, textStatus, errorThrown);
                            }
                        });
                        q.then(function(){
                            queries.shift();
                            response(resp);
                        });
                        response(resp);
                    }
                })
            });
        </script>