(function ($) {
    $.fn.selectChain = function (options) {
        var defaults = {
            key: "id",
            value: "label"
        };
        
        var settings = $.extend({}, defaults, options);
        
        if (!(settings.target instanceof $)) settings.target = $(settings.target);
        
        return this.each(function () {
            var $$ = $(this);

            var data = null;
            if (typeof settings.data == 'string') {
                data = settings.data + '&' + this.name + '=' + $$.val();
            } else if (typeof settings.data == 'object') {
                data = settings.data;
                data[this.name] = $$.val();
            }
            
            settings.target.empty();
            settings.target.addOption("", settings.loadingMessage, false);
            
            $.ajax({
                url: settings.url,
                data: data,
                type: (settings.type || 'get'),
                dataType: 'json',
                success: function (j) {
                    var options = [], i = 0, o = null;
                    
                    for (i = 0; i < j.length; i++) {
                        // required to get around IE bug (http://support.microsoft.com/?scid=kb%3Ben-us%3B276228)
                        o = document.createElement("OPTION");
                        o.value = typeof j[i] == 'object' ? j[i][settings.key] : j[i];
                        o.text = typeof j[i] == 'object' ? j[i][settings.value] : j[i];
                        settings.target.get(0).options[i] = o;
                    }

		// hand control back to browser for a moment
		setTimeout(function () {
		    settings.target
                            .find('option:first')
                            .attr('selected', 'selected')
                            .parent('select')
                            .trigger('change');

            if(settings.selectedValue.length > 0)
            {
            	settings.target.val(settings.selectedValue);
            }
            
            settings.hiddenField.val(settings.selectedValue);
		}, 0);
                },
                error: function (xhr, desc, er) {
                    // add whatever debug you want here.
                }
            });
        });

    };
})(jQuery);