I need a shoutbox with no ADS, or maybe a tutorial with the source code, i got hosting with php and aivaible databases PLEASE THE BEST YOU FIND

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This is very good. I will look for more, but this also has detailed instructions. http://www.shoutpro.com/

It is client side code that is required for the best quality, make JavaScript (in HTML) write to a file like shoutbox.txt and a control the reads from the file shoutbox.txt on load.