$(document).ready(function()
{
  setInterval(function(){fadeTeasers()},5000);

  var firstTeaser = $("div#hp_teaser div:first");
  var lastTeaser  = $("div#hp_teaser div:last");

  function fadeTeasers()
  {
    var currentTeaser = $("div#hp_teaser div:visible:first");

    if (lastTeaser.css("display") == "block")
    {
      lastTeaser.fadeOut("slow");
      firstTeaser.fadeIn("slow");
    }
    else
    {
      currentTeaser.fadeOut("slow");
      currentTeaser.next("div:hidden").fadeIn("slow");
    }
  }
});