Is there a security issue with using javascript cookies?

Posted by Scarface on Stack Overflow See other posts from Stack Overflow or by Scarface
Published on 2010-04-01T01:15:24Z Indexed on 2010/04/01 1:23 UTC
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JavaScript

Hey guys, another quick question for the experts. I have an alert box that displays updates processed in php to the user just like this site. I want to make it so that if the user closes the box, then it will not pop up for another 5 minutes (unless they check the messages then it will not pop up because the entries that cause the pop up are deleted in the database). On the close of the box I was thinking of giving the user a javascript cookie, since the alert box is done in javascript. I was wondering if this was a bad coding practice, since I am kind of unfamiliar with cookies and was warned against them before. If anyone has any advice or can recommend a better way, I would really appreciate it.

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