void main()
{

object oPC = GetEnteringObject();

if (!GetIsPC(oPC)) return;

if (GetItemPossessedBy(oPC, "arenatoken")== OBJECT_INVALID)
   {
   CreateItemOnObject("arenatoken", oPC);
   }

int nSlot;
object oItem;

//Lets remove all there non-arena items they have equipped
    for (nSlot=0; nSlot<NUM_INVENTORY_SLOTS; nSlot++)
    {
        oItem = GetItemInSlot(nSlot, oPC);

        if (GetIsObjectValid(oItem))
        {
        if(GetTag(oItem) != "arena")
        AssignCommand(oPC, ActionUnequipItem(oItem));
        }
    }

}