Only render to partial blocks with express and jade

I was wondering if its possible to render the layout of an express application once using node.js and express. I want to have a stream playing on the layout page but I fear it will stop every time i want to render to the blocks I've declared.

Simple ajax example:

$.get('url', function(response){
    $('#divToUpdateId').html(response);
});

Or this is the same:

$('#divToUpdateId').load('url');