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Polls For Updates To A Website And Plays A Sound If Change Is Found.

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        | oldContent newContent |
oldContent _ nil.
[[Smalltalk at: #Stop ifAbsent:[true]] whileTrue: [
newContent _ '' asUrl
retrieveContents contents.
(oldContent ~= newContent) ifTrue:[
(FMSound majorChordOn: FMSound flute1 from: #c4) play.
oldContent _ newContent
(Delay forSeconds:  30) wait.
]] forkAt: Processor userBackgroundPriority