function openIt() {
  currEl = event.srcElement;
  if (currEl.className == "subhead") {
    newId = currEl.id + "vis" 
     imgId = currEl.id
      showIt = document.all(newId) ;
     if (showIt.style.display == "none") {
       showIt.style.display = "" ;
        document.images(imgId).src = "images/str.gif" 
       } else {
       showIt.style.display = "none" ;
        document.images(imgId).src = "images/kv.gif" 
      }
   }
}