function ValidateInput() { //v3.0

  var total_set = 0;
  
  total_set = total_set + parseInt(document.partydeals.field_1.value);
  total_set = total_set + parseInt(document.partydeals.field_2.value);
  total_set = total_set + parseInt(document.partydeals.field_3.value);
  total_set = total_set + parseInt(document.partydeals.field_4.value);
  total_set = total_set + parseInt(document.partydeals.field_5.value);
  total_set = total_set + parseInt(document.partydeals.field_6.value);
  total_set = total_set + parseInt(document.partydeals.field_7.value);
  total_set = total_set + parseInt(document.partydeals.field_8.value);
  total_set = total_set + parseInt(document.partydeals.field_9.value);
  total_set = total_set + parseInt(document.partydeals.field_10.value);
  total_set = total_set + parseInt(document.partydeals.field_11.value);
 
  
  //if (total_set < 12) { alert("Less than 12 sets.\n Your total is "+total_set); return false; }
  //if (total_set > 12) { alert("More than 12 sets.\n Your total is "+total_set); return false; }
  return true;
 
}