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fun main () =
s <- source (Some "B");
let
val onc = v <- get s; alert ("Now it's " ^ show v)
in
return <xml><body>
<label>Wilbur <cradio source={s} value="A" onchange={onc}/></label>
<label>Walbur <cradio source={s} value="B" onchange={onc}/></label>
Hello, I'm <dyn signal={s <- signal s; return <xml>{[s]}</xml>}/>.
I'll be your waiter for this evening.
</body></xml>
end
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