Reusing Report instance in Visualize.js?

visualize(
    {
        auth:{
            name: "superuser",
            password: "superuser"
        }
    },
    function(v){
        var report = v.report({
            resource: "old uri",
            container: "old container",
            error: function(err){
                alert(err.message);
            }
        });
 
        $("#select_dropdownList").change(function(){
            report.resource = "new uri....";
            report.container = "new container id";
            report.run();
        });
    }
);