$(document).ready(function() {
  $("#menu > ul > li").hover(function() {
    handleRollover($(this));
  },
  function() {
    handleRollout($(this));
  });

  jQuery.preLoadImages("who_rollover.png", "sales_rollover.png", "resources_rollover.png", "links_rollover.png", "contact_rollover.png");
});

function handleRollover(current_menu_item)
{
  current_menu_item.css("height", 65);
  current_menu_item.css("top", "-16px");
  //current_menu_item.find("ul.subnav").show();

  var currentImg = current_menu_item.find("a img");
  var currentSrc = currentImg.attr('src');
  currentImg.attr('src', currentImg.attr('hover'));
  currentImg.attr('hover', currentSrc);
  currentImg.css("height", 65);
}

function handleRollout(current_menu_item)
{
  var currentImg = current_menu_item.find("a img");
  var currentSrc = currentImg.attr('src');
  currentImg.attr('src', currentImg.attr('hover'));
  currentImg.attr('hover', currentSrc);
  currentImg.css("height", 29);

  current_menu_item.css("height", 29);
  current_menu_item.css("top", 0);
  //current_menu_item.parent().find("ul.subnav").hide();
}