What is the purpose of this script?

items are created on the ground with an action.

 

and I seek That They can not logear on Tiles enchanted 

solved:

 

--[[ by God Remady]]--
function onLogout(cid)
local item = getTileItemById({x = getPlayerPosition(cid).x, y = getPlayerPosition(cid).y, z = getPlayerPosition(cid).z, stackpos = 255}, 9565)
if item.itemid == 9565 then
doPlayerSendDefaultCancel(cid, RETURNVALUE_YOUCANNOTLOGOUTHERE)
return false
end
return true
end