$(document).ready(function()
{

  /*
   * Startseite: Image-Roll
   */

  var img_list = $("#col3_image_roll div");
  var img_list_navi = $("<ul>");

  for (var i=0; i<img_list.length; i++)
  {
    if (i > 0)
      img_list_navi.append("<li><a>" + (i + 1) + "</a></li>");
    else
      img_list_navi.append("<li><a class=\"current\">" + (i + 1) + "</a></li>");

  }

  $(img_list_navi.selector + "li:first a").addClass("current");
  img_list_navi.appendTo("#col3_image_roll");

  $(img_list.selector + ":gt(0)").hide();

  $("a", "#col3_image_roll").click(function()
  {
    var el_index = $("a", "#col3_image_roll").index(this);

    if ($(this).hasClass("current")) // Ist das Element schon aktiv
      return false;

    $("div:visible", "#col3_image_roll").fadeOut("slow");
    $("div:eq("+el_index+")", "#col3_image_roll").fadeIn("slow");

    $("a.current", "#col3_image_roll").toggleClass("current");
    $(this).toggleClass("current");

    return false;
  });


  /*
   * Referenzen Bilder-Liste
   */

  $(".ref_thumbnails a", "#col3_content").click(function ()
  {
    if ($(this).attr("href") != $("img", "#ref_image").attr("src"))
      $("img", "#ref_image").attr("src", $(this).attr("href"));
    return false;
  });
  $(".ref_thumbnails a:first", "#col3_content").focus();

});
function switch_teaser()
{
  var current_link = $("a.current", "#col3_image_roll");
  var current_index = $("a", "#col3_image_roll").index(current_link);

  var el_amount = $("div", "#col3_image_roll").length;

  if (current_index == (el_amount - 1))
    next_index = 0;
  else
    next_index = current_index + 1;

  $("a:eq("+next_index+")", "#col3_image_roll ul").click();
}
setInterval("switch_teaser()", 7500);