var TimeHandle = null;

if (document.images) {
   IS = new Array (
      "09-1.gif", "maz-h.gif", "mzkt-h.gif", "mtz-h.gif", "ural-h.gif", "maz-man.gif", "zil-h.gif"
   );
   IL = new Array ();
   for (i in IS) {
      IL[i] = new Image ();
      IL[i].src = "/i/" + IS[i];
   }
}

function ImgSwap(Name, File) {
  if (document.images)
     document.images[Name].src = "/i/" + File;
}

function mOn(M) {
   SubOn(M);
   return false;
}

function mOff(M) {
   SubOffSlow(M);
   return false;
}

function SubOn(t) {
  window.clearTimeout(TimeHandle);
  for (i = 1; i <= 6; i++)
    if (document.all('menu'+i)) SubOff(i);
  ImgSwap('m'+t, '09-1.gif');
  with (document.all('menu'+t).style)
    visibility = 'visible';
}

function SubOff(t) {
  ImgSwap('m'+t, '02-1.gif');
  with (document.all('menu'+t).style)
    visibility = 'hidden';
}

function SubOffSlow(t) {
  TimeHandle = window.setTimeout("SubOff('"+t+"')", 150);
}