function show(id)
{
  var myid = 'm'+id;
  $('m1').style.visibility='hidden';
  $('m2').style.visibility='hidden';
  $('m3').style.visibility='hidden';
  $('m4').style.visibility='hidden';
  $('m5').style.visibility='hidden';
  $('m6').style.visibility='hidden';
  $('m7').style.visibility='hidden';
  $('m8').style.visibility='hidden';
  $(myid).style.visibility='';
}

function writeheader() {
  document.write('<object classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0" width="940" height="100" id="animacion" align="middle"><param name="menu" value="false" /><param name="wmode" value="transparent" /><param name="allowScriptAccess" value="sameDomain" /><param name="movie" value="animacion.swf" /><param name="quality" value="high" /><param name="bgcolor" value="#ffffff" /><embed src="animacion.swf" quality="high" bgcolor="#ffffff" width="940" height="100" name="animacion" align="middle" allowScriptAccess="sameDomain" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" /></object>');
}