void main()
{
object oPC = GetPCSpeaker();
//This will ensure that the hench levels only themselves up.
object oTarget = OBJECT_SELF;

int nInt;
if (GetIsObjectValid(oTarget))
   {
   //We only want to level up one level at a time.
   nInt = 1;

   while (nInt>0)
      {
      //level up by class.  You can look in constants
      //over to the right and find prestige classes
      //to level up as well.
      LevelUpHenchman(oTarget, CLASS_TYPE_RANGER);
      nInt--;
      }
   }
}