void main()
{
  // Variable Definitions
  object oPC = GetLastUsedBy();
  object oWayPointWest = GetObjectByTag("PortalWaypointW");
  object oWayPointEast = GetObjectByTag("PortalWaypointE");
  location lEast = GetLocation(oWayPointEast);
  object oStore = GetObjectByTag("ElemPortStore");
  string sPillar = GetTag(OBJECT_SELF);

  if (sPillar == "AirPedestal")
    {
     if (GetLocalInt(oStore, "air") == 0)
       {
         object sStone = GetItemPossessedBy(oPC, "stoneofair");
         if (sStone != OBJECT_INVALID)
           {
             // Activate Air Column
             // PlaySound
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftofair", GetLocation(GetNearestObjectByTag(sPillar, oWayPointWest)));
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftofair", GetLocation(GetNearestObjectByTag(sPillar, oWayPointEast)));
             SetLocalInt(oStore, "air", 1);
           }
         else
           {
             SendMessageToPC(oPC, "You must be doing something wrong");
           }
       }
     else
       {
         SendMessageToPC(oPC, "The stone is already attached to the pedestal");
       }
    }
  else if (sPillar == "EarthPedestal")
    {
     if (GetLocalInt(oStore, "earth") == 0)
       {
         object sStone = GetItemPossessedBy(oPC, "stoneofearth");
         if (sStone != OBJECT_INVALID)
           {
             // Activate Air Column
             // PlaySound
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftofearth", GetLocation(GetNearestObjectByTag(sPillar, oWayPointWest)));
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftofearth", GetLocation(GetNearestObjectByTag(sPillar, oWayPointEast)));
             SetLocalInt(oStore, "earth", 1);
           }
         else
           {
             SendMessageToPC(oPC, "You must be doing something wrong");
           }
       }
     else
       {
         SendMessageToPC(oPC, "The stone is already attached to the pedestal");
       }
    }
  else if (sPillar == "FirePedestal")
    {
     if (GetLocalInt(oStore, "fire") == 0)
       {
         object sStone = GetItemPossessedBy(oPC, "stoneoffire");
         if (sStone != OBJECT_INVALID)
           {
             // Activate Air Column
             // PlaySound
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftoffire", GetLocation(GetNearestObjectByTag(sPillar, oWayPointWest)));
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftoffire", GetLocation(GetNearestObjectByTag(sPillar, oWayPointEast)));
             SetLocalInt(oStore, "fire", 1);
           }
         else
           {
             SendMessageToPC(oPC, "You must be doing something wrong");
           }
       }
     else
       {
         SendMessageToPC(oPC, "The stone is already attached to the pedestal");
       }
    }
  else if (sPillar == "WaterPedestal")
    {
     if (GetLocalInt(oStore, "water") == 0)
       {
         object sStone = GetItemPossessedBy(oPC, "stoneofwater");
         if (sStone != OBJECT_INVALID)
           {
             // Activate Air Column
             // PlaySound
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftofwater", GetLocation(GetNearestObjectByTag(sPillar, oWayPointWest)));
             CreateObject(OBJECT_TYPE_PLACEABLE, "shaftofwater", GetLocation(GetNearestObjectByTag(sPillar, oWayPointEast)));
             SetLocalInt(oStore, "water", 1);
           }
         else
           {
             SendMessageToPC(oPC, "You must be doing something wrong");
           }
       }
     else
       {
         SendMessageToPC(oPC, "The stone is already attached to the pedestal");
       }
    }

  // now check if all pillar's are activated
    if (GetLocalInt(oStore, "air") == 1 &&
       GetLocalInt(oStore, "fire") == 1 &&
       GetLocalInt(oStore, "water") == 1 &&
       GetLocalInt(oStore, "earth") == 1)
     {
       // Activate Portal
       CreateObject(OBJECT_TYPE_PLACEABLE, "elemporteast", GetLocation(GetNearestObjectByTag("PortalWaypointE")));
       CreateObject(OBJECT_TYPE_PLACEABLE, "elemportwest", GetLocation(GetNearestObjectByTag("PortalWaypointW")));
       // ActionCastFakeSpellAtObject(SPELL_HEAL, oPortalWest));
       // ActionCastFakeSpellAtObject(SPELL_HEAL, oPortalEast));
       // SignalEvent(oPortalWest, EventUserDefined(5555));
       // SignalEvent(oPortalEast, EventUserDefined(5555));
     }
}