void main()
{
    object oPC = GetEnteringObject();
    string sString=GetStringLeft(GetTag(oPC),7);
    if (sString!="jw_crog")
    {
     return;
    }
    object oDoor = GetNearestObject(OBJECT_TYPE_DOOR, OBJECT_SELF, 1);
    if (GetIsPC(oPC))
        {
        SetLocked(oDoor, 0);
        ActionOpenDoor(oDoor);
        }
}