> Just write one:
> 
> in a helper:
>    def only_first_time(what)
>      first_time = @previous_what.nil?
>      @previous_what ||= what
>      what if first_time
>    end

Thanks, but that's not very versatile. I could only use it once. AFAIK I 
can use cycle() wherever I want, so I'd like the helper to be somehow 
dependant from where it has been called. Is this possible?

Thanks
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