robcowie

$.fn.filterGroups = function( options ) {
    var settings = $.extend( {}, options);

    return this.each(function(){

        var $select = $(this);
        // Clone the optgroups to data, then remove them from dom
        $select.data('fg-original-groups', $select.find('optgroup').clone()).children('optgroup').remove();

        $(settings.groupSelector).change(function(){