void main()
{
    object oItem=GetItemActivated();
    object oPC = GetItemActivator();

    if(GetStringLeft(GetTag(oItem),4)=="DH2_")
    {
    ExecuteScript("desertheat2",oPC);
    }
 else
    {
    ExecuteScript(GetTag(GetItemActivated()),OBJECT_SELF);
   //SendMessageToPC(oPC,"on activate firing");
    }
}