function func() {
  var ct=document.fm1.elements.length-7
  var xx="���i�I��";
  for (i=0;i<ct;i++){
   if (document.fm1.elements[i].checked){
      var ax=document.fm1.elements[i].value;
      xx=xx+"\n"+ax;
      }
   }
  document.fm1.cage.value=xx;
}