Fix search when user types fast.

                        this.loadRecord(record);

                    }

                    else {

                        // Wait a bit before actually performing the search.

                        // When user is typing fast, the value of el.value

                        // might not right away be the final value.  For example

                        // user might type "tre" but we will get three keyup events

                        // where el.value === "t".

                        clearTimeout(this.searchTimeout);

                        this.searchTimeout = Ext.Function.defer(function() {

                            this.search(el.value);

                        }, 50, this);

                    }

                },

                focus: function(el) {