function writeText(id, text)
{
  if (document.getElementById) {
    x = document.getElementById(id);
    x.innerHTML = '';
    x.innerHTML = text;
  }
  else if (document.all) {
    x = document.all[id];
    x.innerHTML = text;
  }
}

function changeImage(image_name, text)
{
  document['slidek'].src = image_name;

  writeText("slidek_caption", text);
  writeText("contact", "");
  writeText("bio", "");
}