foist javascript into another frame, and evaluate it in the target context

Firefox updates the inner <span id='update_me'>, and IE updates the outer
one.

I figured it out, but I'm keeping it a secret because I want to be the only
one who knows how to do it.

Oooh, okay, read this:
http://johnvey.com/features/deliciousdirector/web-service-broker.html

Then do this:

  function update_grinder(sauce)
  {
    var grinder = $('grinder');
    grinder.src='javascript:void(function(){'+sauce+'}())';
  }