function swap(n) {
var items = [
  {Image:"images/info/mat_info.gif"},
  {Image:"images/info/jstyle_info.gif"},
  {Image:"images/info/meb_info.gif"},
  {Image:"images/info/do_info.gif"},
  {Image:"images/info/dbs_info.gif"},
  {Image:"images/info/axel_info.gif"},
  {Image:"images/info/skull_info.gif"},
  {Image:"images/info/ring_info.gif"},
  {Image:"images/info/ptop_info.gif"},
  {Image:"images/info/dbs_info2.gif"},
  {Image:"images/info/a.jpg"},
  {Image:"images/info/db.gif"},
  {Image:"images/info/axel.gif"}
];

document.getElementById("info").src = items[n].Image;
}