allow new values with chosen.js multiple select

Question

I\'m using the chosen.js plugin http://harvesthq.github.com/chosen/ with jQuery to allow the user to select multiple options from a select. However, I now want to be able to

Answer 1

I have updated the code from 3nochroot once more. Now I have only one selector to find the multiselect input.

$(document).ready(function() {
$(".js-choicelist").chosen({
    //config comes here
}).parent().find('.chosen-container .search-field input[type=text]').keydown(
    function (evt) {
        var stroke, _ref, target, list;
        // get keycode
        stroke = (_ref = evt.which) != null ? _ref : evt.keyCode;
        // If enter or tab key
        if (stroke === 9 || stroke === 13) {
            target = $(evt.target);
            // get the list of current options
            chosenList = target.parents('.chosen-container').find('.chosen-choices li.search-choice > span').map(function () { return $(this).text(); }).get();
            // get the list of matches from the existing drop-down
            matchList = target.parents('.chosen-container').find('.chosen-results li').map(function () { return $(this).text(); }).get();
            // highlighted option
            highlightedList = target.parents('.chosen-container').find('.chosen-results li.highlighted').map(function () { return $(this).text(); }).get();
            // Get the value which the user has typed in
            var newString = $.trim(target.val());
            // if the option does not exists, and the text doesn't exactly match an existing option, and there is not an option highlighted in the list
            if ($.inArray(newString,matchList) < 0 && $.inArray(newString,chosenList) < 0 && highlightedList.length == 0) {
                // Create a new option and add it to the list (but don't make it selected)
                var newOption = '' + newString + '';
                var choiceSelect = target.parents('.select-multiple').find('select');
                choiceSelect.prepend(newOption);
                // trigger the update event
                choiceSelect.trigger("chosen:updated");
                // tell chosen to close the list box
                choiceSelect.trigger("chosen:close");
                return true;
            }
            // otherwise, just let the event bubble up
            return true;
        }
    }
)

})