Help Change back on lever

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Im useing TFS 0.3.2 and im trying to add a timer to change back a lever, heres the script im useing to remove 2 stones.
I would like the lever to reset after a certian ammount of time.

Any help would be great ty

function onUse(cid, item, frompos, item2, topos)
    wall1 = {x=1212, y=1053, z=9, stackpos=1}
    wall2 = {x=1213, y=1053, z=9, stackpos=1}
    getwall1 = getThingfromPos(wall1)
    getwall2 = getThingfromPos(wall2)

    if item.uid == 15000 and item.itemid == 1945 then
        doRemoveItem(getwall1.uid,1)
        doRemoveItem(getwall2.uid,1)
        doTransformItem(item.uid,item.itemid+1)
    elseif item.uid == 15000 and item.itemid == 1946 then
        doCreateItem(1304,1,wall1)
        doCreateItem(1304,1,wall2)
        doTransformItem(item.uid,item.itemid-1)        
    else
        doPlayerSendCancel(cid,"Sorry, not possible.")
    end

    return 1
end

 

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Help anyone?

 

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Got it to work. Pls delete thread.