JQuery Mobile and Scala.js: How to call functions like "navbar()" or "toolbar()"?

In JQuery mobile, to make persistent headers, footers and nabbers work as expected, you have to do something like this:

$(function() {
    $( "[data-role='navbar']" ).navbar();
    $( "[data-role='header'], [data-role='footer']" ).toolbar();
});

What is the equivalent in Scala.js?