jQuery(document).ready(
  function () {
    // Setup the drop down menus
    jQuery("#navigation > div").hoverIntent(nav_expand, nav_contract);
    
    // Disable the top level links which have children
    jQuery("#navigation > div > ul").parent().children("a").click(function () {if (jQuery(this).attr('href') == '#') return false;});
  }
);

function nav_expand(e) {
  jQuery("ul:first", this).show();
  jQuery(this).addClass('hover');
}

function nav_contract(e) {
  jQuery("ul:first", this).hide();
  jQuery(this).removeClass('hover');
}