how to insert a javascript block in my haml %head , containing erb

X-posted with Haml group, as I don't know which group it should be
posted ...

I am trying to insert this block ( which is inning fine in an
application.html.erb

   <head>
       <script type="text/javascript">
            $(function() {
               <%= yield :document_ready %>
            });
      </script>
   </head>

I tried :

    %head
        :javascript
             = yield :document_ready

    %head
        :javascript
             '<%= yield :document_ready %>'

but no way , the yield :document_ready is never executed

feedback welcome

Hi Erwin

This should work:
   %head
       = yield :document_ready