function a8mainmenu(pos) {
  for (var i=0; i<=3; i++) {
    document.getElementById("mainmenu" + i).setAttribute("a8selected", (pos == i) ? "true" : "false");
  }
  document.getElementById("menubar").style.backgroundImage = "url('../media/ci/menu4/menubar" + pos + ".jpg')";
}

function a8menu(id) {
  if (id) {
    document.getElementById("menu_" + id).setAttribute("a8selected", "true");
  }
}

function a8installImgTooltip(id, width, height) {
  var thumb = document.getElementById(id);
  var img = new Image();
  img.src = thumb.src;
  img.className = "a8imgTooltip";
  img.style.display = "none";
  document.body.appendChild(img);
  var w = width || 50;
  var h = height || 20;
  thumb.src = "http://app.powerpic.net/?source=url&orig=" + encodeURIComponent(thumb.src) + "&type=RESIZE&width=" + w + "&height=" + h + "&outputFormat=PNG&result=img";
  $(thumb).bind("mouseover", function(e) {
    img.style.top = e.pageY + 10 + "px";
    img.style.left = e.pageX + 10 + "px";
    $(img).slideToggle('slow');
  });
  $(thumb).bind("mouseout", function(e) {
    $(img).slideToggle('slow');
  });
}