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This code will refresh you page in 3 second. We have used OnLoad() Event function to call our function. Note: Please don’t use a lot of auto refresh page because it is kind of annoying and your sever bandwidth will be decreasing, one way you are increasing hits to server.
Source: http://www.phpmind.com/blog/2011/02/how-to-auto-refresh-a-page-through-javascript/