void main()
{
 {
object oObject = GetFirstObjectInArea();
int nPCinArea=FALSE;
location lLoc;
int nIdx;

while (GetIsObjectValid(oObject))
  {
    if (GetIsPC(oObject))
      {
      nPCinArea = TRUE;
      }
    oObject=GetNextObjectInArea();
  }





if (nPCinArea != TRUE)
  {

SetLocalInt(GetObjectByTag("jw_acid"),"Reset",1);
   SetLocalInt(GetObjectByTag("jw_fire"),"Reset",1);
    SetLocalInt(GetObjectByTag("jw_spike"),"Reset",1);



  }

}
}