var cominfo = {	id: '',	user: '',	com: '',	is_login: function() {		if (this.id=='') {			this.comlogin();			return false;		} else {			return true;		}	},	comlogin: function() {		layer.open({			type: 2,			title: '请登录',			shadeClose: false,			shade: 0.8,			area: ['350px', '410px'],			content: '/index.php?m=Web&c=Public&a=loginwin'		});	}};