/*
 * jQuery Related Selects plug-in 1.0
 *
 * http://www.erichynds.com/jquery/jquery-related-dependent-selects-plugin/
 * http://github.com/ehynds/jquery-related-selects
 *
 * Copyright (c) 2009 Eric Hynds
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 */
(function (d)
{
    d.fn.relatedSelects = function (j)
    {
        j = d.extend({}, d.fn.relatedSelects.defaults, j);
        return this.each(function ()
        {
            new q(this, j)
        })
    };
    var q = function (j, h)
    {
        function r()
        {
            for (var b, a, c = 1, f = g.length; c < f; c++)
            {
                b = k.find("select[name='" + g[c] + "']");
                a = b.find("option[value='']").text();
                b.data("defaultOption", a)
            }
        }
        function m(b, a, c, f)
        {
            if (a.length)
            {
                var e = d.trim(b.val());
                if (e.length > 0 && e !== f.loadingMessage && a) {
                    n(c);
                    s(b, a, f)
                }
                else {
                    a && n(c);
                }
            }
        }
        function s(b, a, c)
        {
            var f = [], e = [];
            e = 0;
            for (var t = g.length; e < t; e++) {
                f.push('select[name="' + g[e] + '"]');
            }
            e = d(f.join(","), k).serialize();
            a.attr("disabled", "disabled").html('<option value="">' + c.loadingMessage + "</option>");
            d.ajax(
            {
                beforeSend : function ()
                {
                    $('#modelID').selectmenu('destroy');
					$('#modelID').hide();
					c.onLoadingStart.call(a)
                },
                complete : function ()
                {
                    
                    c.onLoadingEnd.call(a);
					$('#modelID').selectmenu()
                },
                dataType : c.dataType, data : e, url : c.onChangeLoad,
                success : function (l)
                {
                    var i = [], o = a.data("defaultOption");
                    o.length > 0 && i.push('<option value="" selected="selected">' + o + "</option>");
                    if (c.dataType === "json" && typeof l === "object" && l)
                    {
                        d.each(l, function (u, v)
                        {
                            i.push('<option value="' + u + '">' + v + "</option>")
                        });
                        a.html(i.join("")).removeAttr("disabled")
                    }
                    else if (c.dataType === "html" && d.trim(l).length > 0) {
                        i.push(d.trim(l));
                        a.html(i.join("")).removeAttr("disabled")
                    }
                    else
                    {
                        a.html(i.join(""));
                        c.disableIfEmpty || a.removeAttr("disabled");
                        c.onEmptyResult.call(b)
                    }
                }
            })
        }
        function w(b)
        {
            b = b.find("option");
            return b.length === 0 || b.length === 1 && b.filter(":first").attr("value").length === 0 ? false : true
        }
        function n(b)
        {
            b = p(b) + 1;
            for (var a = g.length; b < a; b++)
            {
                d("select[name='" + g[b] + "']", k).attr("disabled", "disabled").find("option:first").attr("selected", 
                "selected");
            }
        }
        function x(b)
        {
            return k.find("select[name='" + g[p(b) + 1] + "']")
        }
        function p(b)
        {
            for (var a = 0, c = g.length; a < c; a++) {
                if (g[a] === b) {
                    return a;
                }
            }
        }
        function y()
        {
            var b = h.selects;
            h.selects = {};
            for (var a = 0, c = b.length; a < c; a++) h.selects[b[a]] = {}
        }
        var k = d(j), g = [];
        d.isArray(h.selects) && y();
        for (var z in h.selects) {
            g.push(z);
        }
        r();
        d.each(h.selects, function (b, a)
        {
            var c = k.find("select[name='" + b + "']"), f = x(b), e = c.val();
            a = d.extend({
                defaultOptionText : h.defaultOptionText || c.data("defaultOption")
            }, h, a);
            c.data("defaultOption", a.defaultOptionText);
            c.change(function ()
            {
                a.onChange.call(c);
                m(c, f, b, a)
            });
            e && e.length > 0 && w(f) || m(c, f, b, a)
        })
    };
    d.fn.relatedSelects.defaults = 
    {
        selects : {}, loadingMessage : "Loading, please wait...", disableIfEmpty : false, dataType : "json", 
        onChangeLoad : "", onLoadingStart : function () {}, onLoadingEnd : function () {},
        onChange : function () {}, onEmptyResult : function () {}
    }
})(jQuery);