var showSign = function(id,source,is_oid)
{
  if (source._sign_loaded)
      return;
  source.style.position="relative";
  source.style.height="1px";
  if (is_oid)
    source.innerHTML+="<span id='sign_"+id+"' style='opacity:0.1;width:140px;height:100px;position:absolute;top:-70px; right:30px;'><img border='0' src='getsign_img.php?oid="+id+"' alt='' /></span>";
  else
    source.innerHTML+="<span id='sign_"+id+"' style='opacity:0.1;width:140px;height:100px;position:absolute;top:-70px; right:30px;'><img border='0' src='getsign_img.php?id="+id+"' alt='' /></span>";
  setTimeout('document.getElementById("sign_'+id+'").style.opacity=0.2',100);
  setTimeout('document.getElementById("sign_'+id+'").style.opacity=0.4',200);
  setTimeout('document.getElementById("sign_'+id+'").style.opacity=0.6',300);
  setTimeout('document.getElementById("sign_'+id+'").style.opacity=0.8',400);
  setTimeout('document.getElementById("sign_'+id+'").style.opacity=1.0',500);
  source._sign_loaded=true;
  source.onmouseout = function()
  {
    var el = document.getElementById("sign_"+id);
    el.parentNode.removeChild(el);
    source.onmouseout = null;
    source._sign_loaded=false;
  }
}