/**
* @author Paul Chan / KF Software House
* http://www.kfsoft.info
* Modified by Aleksey Kuznetsov (AK) at 2011/10/14  
*
* Version 0.6
* Copyright (c) 2011 KF Software House
*
* Licensed under the MIT license:
* http://www.opensource.org/licenses/mit-license.php
*
*/

(function($) {

    var _options = new Array();
    var _optionsMenuLength = new Array();
    var timeoutId = 0;

    jQuery.fn.MyDropdown = function(options) {
        _options[_options.length] = $.extend({}, $.fn.MyDropdown.defaults, options);
        _optionsMenuLength[_options.length] = 0;
        var idx = _options.length - 1;
        var opt = _options[idx];
        $(this).attr("idx", idx);

        $(this).each(function() {
            var selectmenu = $(this);
            var menuoptions = selectmenu.find("option");
            var val;
            var genMenu = "";

            _optionsMenuLength[idx] = menuoptions.length;

            for (var i = 0; i != menuoptions.length; i++) {
                val = menuoptions[i].value;
                txt = menuoptions[i].text;
                genMenu += "<li v='" + val + "'>" + txt;
            }

            if (menuoptions.length > 0)
                genMenu = "<ul class='advMenuUL advMenuUL" + idx + "'>" + genMenu + "</ul>";
            else
                genMenu = "";

            var genHeader = "<div class='genHeader genHeader" + idx + "'>Select</div>";

            if (!opt.bDebug)
                selectmenu.hide();

            selectmenu.after(genHeader + genMenu);

            $(".advMenuUL" + idx).addClass("menuHeader").addClass("menuHeader" + idx);

            $(".genHeader" + idx).click(function() {

                // AK --
                var selectedv = $(selectmenu).val()
                $('.advMenuUL li').each(function() {
                    var v = $(this).attr('v');
                    if (v == selectedv)
                        this.className = 'sel';
                });

                $(".menuHeader" + idx).css("height", _optionsMenuLength[idx] * opt.lineHeight);
                $(".menuHeader" + idx).toggle(); //AK

            }).mouseleave(function() {

                $(".menuHeader" + idx).css("height", opt.lineHeight + "px");
                timeoutId = setTimeout(function() {
                    $(".menuHeader" + idx).hide();
                }, 10);
            });

            // AK --
            $(".advMenuUL" + idx + " li").mouseover(function() {
                $('.advMenuUL li').each(function() {
                    this.className = '';
                });
            });


            $(".menuHeader" + idx).mouseenter(function() {
                $(this).css("height", _optionsMenuLength[idx] * opt.lineHeight);
                clearTimeout(timeoutId);
            });

            $(".menuHeader" + idx).mouseleave(function() {
                $(this).css("height", opt.lineHeight + "px");
                $(this).hide();
            });

            $(".advMenuUL" + idx + " li").click(function() {
                $(".genHeader" + idx).html($(this).text());
                var v = $(this).attr("v");
                $(selectmenu).children().each(function() {
                    if ($(this).val() == v)
                        this.selected = true;
                });

                $(selectmenu).trigger('change');  //Added by Hugh Wormington

                //hide item
                $(".menuHeader" + idx).hide();
            });

            $(".advMenuUL").hide();

            //init select
            $(selectmenu).children().each(function() {
                if (this.selected) {
                    var selectedv = $(this).val();
                    var selectedt = $(this).text();

                    $(".advMenuUL li").each(function() {
                        var v = $(this).attr("v");
                        if (v == selectedv) {
                            $(".genHeader" + idx).html(selectedt);
                        }
                    });
                }
            });
        });

    }

    //default values
    jQuery.fn.MyDropdown.defaults = {
        bDebug: false,
        lineHeight: 33 //Includes border top
    };
})(jQuery);