Checking for attachments in JavaScript

Posted by Sanjay on Stack Overflow See other posts from Stack Overflow or by Sanjay
Published on 2010-05-10T15:41:04Z Indexed on 2010/05/10 15:44 UTC
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JavaScript

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jQuery

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prototype

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html

Prior to submitting a form, I would like to check if a file has been attached and pop up a warning message saying that a file needs to be attached if it hasn't been. I was wondering how to accomplish this using JavaScript or Prototype or JQuery etc?

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