Jquery combobox и bootstrap

$.widget("ui.combobox", { 
    _create: function() { 
        var self = this, 
            select = this.element.hide(), 
            selected = select.children(":selected"), 
            value = selected.val() ? selected.text() : ""; 
        var input = this.input = $("<input>").insertAfter(select).val(value).autocomplete({ 
            delay: 0, 
            minLength: 0, 
            source: function(request, response) { 
                var matcher = new RegExp($.ui.autocomplete.escapeRegex(request.term), "i"); 
                response(select.children("option").map(function() { 
                    var text = $(this).text(); 
                    if (this.value && (!request.term || matcher.test(text))) return { 
                        label: text.replace( 
                        new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + $.ui.autocomplete.escapeRegex(request.term) + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>"), 
                        value: text, 
                        option: this 
                    }; 
                })); 
            }, 
            select: function(event, ui) { 
                ui.item.option.selected = true; 
                self._trigger("selected", event, { 
                    item: ui.item.option 
                }); 
            }, 
            change: function(event, ui) { 
                if (!ui.item) { 
                    var matcher = new RegExp("^" + $.ui.autocomplete.escapeRegex($(this).val()) + "$", "i"), 
                        valid = false; 
                    select.children("option").each(function() { 
                        if ($(this).text().match(matcher)) { 
                            this.selected = valid = true; 
                            return false; 
                        } 
                    }); 
                     
                    if (!valid) { 
                        // remove invalid value, as it didn't match anything 
                        $(this).val(""); 
                        select.val(""); 
                        input.data("autocomplete").term = ""; 
                        return false; 
                    } 
                     
                } 
            } 
        }).addClass("ui-widget ui-widget-content ui-corner-left"); 
 
        input.data("autocomplete")._renderItem = function(ul, item) { 
            return $("<li></li>").data("item.autocomplete", item).append("<a>" + item.label + "</a>").appendTo(ul); 
        }; 
 
        this.button = $("<button type='button'>&nbsp;</button>").attr("tabIndex", -1).attr("title", "Show All Items").insertAfter(input).button({ 
            icons: { 
                primary: "ui-icon-triangle-1-s" 
            }, 
            text: false 
        }).removeClass("ui-corner-all").addClass("ui-corner-right ui-button-icon").click(function() { 
            // close if already visible 
            if (input.autocomplete("widget").is(":visible")) { 
                input.autocomplete("close"); 
                return; 
            } 
 
            // work around a bug (likely same cause as #5265) 
            $(this).blur(); 
 
            // pass empty string as value to search for, displaying all results 
            input.autocomplete("search", ""); 
            input.focus(); 
        }); 
    }, 
 
    destroy: function() { 
        this.input.remove(); 
        this.button.remove(); 
        this.element.show(); 
        $.Widget.prototype.destroy.call(this); 
    } 
}); 
 
$('combo').combobox();

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>