function expand(URI,SUB,EXP){
  if(document.getElementById) {
    if(document.getElementById(SUB).style.display) {
      if(URI != 0) {
        document.getElementById(SUB).style.display = "block";
        document.getElementById(EXP).style.display = "none";
      } else {
        document.getElementById(SUB).style.display = "none";
        document.getElementById(EXP).style.display = "block";
      }
    } else {
      location.href = URI;
      return true;
    }
  } else {
    location.href = URI;
    return true;
  }
}

function mai_onoff(OBJ,SUB){
   var chkbox = document.getElementById(OBJ);
   if (chkbox) {
     if(chkbox.checked) {
       document.getElementById(SUB).style.display = "inline";
     } else {
       document.getElementById(SUB).style.display = "none";
       document.getElementById(SUB).selectedIndex = 0;
     }
   }
}