Проблема с window form

editFiletype : function(btn, e) {
		
		var r = {
			'id' : MODx.request.id,
			'd' : this.menu.record.i,
			'key' : this.menu.record.key,
			'name' : this.menu.record.name,
			'service' : 'MODX'
		};
		if (!this.windows.EditFiletype) {
			this.windows.EditFiletype = MODx.load({
				xtype : 'advicles-window-filetypeedit',
				record : r,
				listeners : {
					'success' : {
						fn : function(r) {
							this.refresh();
						},
						scope : this
					}
				}
			});
		}
		this.windows.EditFiletype.setValues(r);
		this.windows.EditFiletype.show(e.target);
	},

Advicles.window.EditFiletype = function(config) {
	config = config || {};
	this.ident = config.ident || 'advimp' + Ext.id();
	Ext.applyIf(config, {
		title : "Редактировать тип файлов",
		id : this.ident,
		url : "/assets/components/advicles/filetypelist.php",
		action : 'edit',
		fields : [{
			xtype : 'hidden',
			name : 'id',
			value : MODx.request.id
		}, {
			xtype : 'hidden',
			name : 'd',
			value : MODx.request.d
		}, {
			xtype : 'textfield',
			fieldLabel : "Ключ",
			description : "Латинскими буквами",
			name : 'key',
			id : 'modx-filetype-key',
			value : MODx.request.key
		}, {
			xtype : 'textfield',
			fieldLabel : "Название",
			name : 'name',
			id : 'modx-filetype-name',
			value : MODx.request.name
		}]
	});
	Advicles.window.EditFiletype.superclass.constructor.call(this, config);
};
Ext.extend(Advicles.window.EditFiletype, MODx.Window, {
	activeOptions : 'advicles-options-MODX',
	changeService : function(cb, s) {
		var nv = cb.getValue();
		var op = Ext.getCmp(this.activeOptions);

		var nop = 'advicles-options-' + nv;
		var p = Ext.getCmp(nop);
		if (p) {
			op.hide();
			p.show();
			this.activeOptions = nop;
		}
		return true;
	}
});
Ext.reg('advicles-window-filetypeedit', Advicles.window.EditFiletype);

TypeError: g is undefined
var g = this.getRoot(a), e = g.length, d = e, k = true;