$(function() {
  
  // initialize slideshow
  $('#home_slideshow').cycle({
    delay: 10000,
    speed: 6000,
    before: onBefore
  });
  
  // callback for changing the slideshow caption
  function onBefore() {
    $('#slideshow_caption').html(this.alt);
  };
  
  // Replace the href values of the top level nav items
  // so that they go to first sub item
  var $topLevelItems = $('#nav > ul > li');
  $topLevelItems.each(function() {
    var $a = $(this).children('a').first(), // get top level a tags
        $subList = $a.siblings('ul');       // get subnav ul
    if ($subList.length > 0) {
        // replace the href attribute
        $a.attr('href', $subList.find('a').first().attr('href'));
    }
  });

});