function setRooms(){
  var myVal = '';
  var F = document.SearchForm;
  for (var i=0;i < F.length;i++){
    myField = F.elements[i];
    if((myField.name.substring(0,4)=="room")||(myField.name.substring(0,6)=="number")){
      myVal += '&' + myField.name;
      myVal += '=' + myField.value;
    }
  }
  process_form();
  F.submit();
}