void main()
{
    string sTag = GetLocalString(OBJECT_SELF,"StoneID");
    object oChest = GetObjectByTag("DobyChest");

    if(sTag == "Message1") sTag = "messagestone";
       else if(sTag == "Message2") sTag = "messagestone001";
         else if(sTag == "Message3") sTag = "messagestone002";
    if(sTag == "" || ( !GetIsObjectValid(oChest)) ) return;
    CreateItemOnObject(sTag,oChest);
    SetLocalString(OBJECT_SELF,"StoneID","");
}