SD.calendar.addPopup('filterEvents', new Ext.Window({
	layout: 'fit',
	title: 'Filter Events',
	width: 438,
	height: 357,
	closeAction: 'hide',
	modal: true,
	plain: true,
	tools: [{
		id: 'help',
		handler: function(btn) {
			helppopup.loadHelpFile("Filter Calendar Events", 500, 455);
		}
	}],
	items: [
	new SD.calendar.classes.categoryGrid([1, 2], false, 'filterCategories')],
	buttons: [{
		text: 'Close',
		handler: function(btn) {
			this.ownerCt.ownerCt.items.items[0].store.save();
			this.ownerCt.ownerCt.hide();
		}
	}],
	listeners: {
		show: function(popup) {
			popup.items.item(0).store.load();
		}
	}
})
);