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These are methods of a given window or frame
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yourID = setTimeout(JSexp, timeinmsecs);
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sets yourID to a handle which can be used in
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clearTimeout(yourID); // which completely clears what was started by setTimeout
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setTimeout starts a timer which causes JavaScript expression JSexp to be evaluated after a time interval of timeinmsecs which is expressed in milliseconds
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Time outs can be used to animate text or images and make a display change at after a given interval
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Also to start a daemon monitoring whats going on!
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Note setTimeout does not start a LOOP -- just a single timing.
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Thus clearTimeout need NOT be called unless you want abnormal termination
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Further if you want a loop, please ensure JSexp restarts a new setTimeout
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Addon