jQuery.noConflict();

//evertying inside of this next part can use $ for jQuery (and not prototype) and is hidden from any other Javascript on the page
(function($) {
  //add the class 'on' to the link(s) in the subnav who point to the current page. 
  jQuery(".subnav a[href^='"+ document.location.pathname+"']").addClass('on');
})(jQuery);