tab.render({
								    elem: 'contents',
								    roll: false,
								    tool: false,
								    width: '100%',
								    height: '480px',
								    index: 0,
								    tabMax: 30,
								    closeEvent: function(id) {
										
								        // do something
								    },
								    data: [{
								        id: "1",
								        title: "首页",
								        url: "http://www.baidu.com",
								        close: false
								    },{
								        id: "2",
								        title: "百度一下",
								        url: "http://www.baidu.com",
								        close: false
								    }]
								});