var wait = new Image();
wait.src = "img/indicator_arrows.gif";
function cf1(){
  if(document.find.search.value==""){
    alert("Error!\nYou did not fill in search string.");
    document.find.search.focus();
    return false; }
  window.document.wait.src = wait.src;
  window.document.find.send.disabled=1;
  return true;
  }