void main()
{
  object oPC = GetExitingObject();
  object oPortalWest = GetNearestObjectByTag("elemportwest");
  object oPortalEast = GetNearestObjectByTag("elemporteast");
  object oStore = GetNearestObjectByTag("ElemPortStore");

  DestroyObject(GetNearestObjectByTag("elemportwest"));
  DestroyObject(GetNearestObjectByTag("elemporteast"));

  if (GetItemPossessedBy(oPC, "stoneofair") != OBJECT_INVALID)
    {
      DestroyObject(GetNearestObjectByTag("ShaftofAir"));
      DestroyObject(GetNearestObjectByTag("ShaftofAir"));
      SetLocalInt(oStore, "air", 0);
    }
  else if (GetItemPossessedBy(oPC, "stoneofearth") != OBJECT_INVALID)
    {
      DestroyObject(GetNearestObjectByTag("ShaftofEarth"));
      DestroyObject(GetNearestObjectByTag("ShaftofEarth"));
      SetLocalInt(oStore, "earth", 0);
    }
  else if (GetItemPossessedBy(oPC, "stoneoffire") != OBJECT_INVALID)
    {
      DestroyObject(GetNearestObjectByTag("ShaftofFire"));
      DestroyObject(GetNearestObjectByTag("ShaftofFire"));
      SetLocalInt(oStore, "fire", 0);
    }
  else if (GetItemPossessedBy(oPC, "stoneofwater") != OBJECT_INVALID)
    {
      DestroyObject(GetNearestObjectByTag("ShaftofWater"));
      DestroyObject(GetNearestObjectByTag("ShaftofWater"));
      SetLocalInt(oStore, "water", 0);
    }
}