easyui-window左右居中设置

$('#id').window({
	width: 650,
	height: 400,
	top: 0,
	left: ($(window).width() - 650) * 0.5,
	minimizable: false,
	maximizable: false,
	resizable: false,
	closed: false,
	cache: false,
	title: "title",
	href: url,
	modal: true
});