m___out1 = new Image();
  m___out1.src = "images/space.gif";
  m__over1 = new Image();
  m__over1.src = "images/drop.gif";

  var clickvar=0;

  function fmout(mbutt_nr,m_object)
  {
   if (clickvar!=mbutt_nr)
     window.document.images[mbutt_nr].src = m_object.src;
  }

  function fmovr(mbutt_nr,m_object)
  {
   if (clickvar!=mbutt_nr)
     window.document.images[mbutt_nr].src = m_object.src;
  }