Sound alert when certain text is found on a page?

Question

linux

Hello.
I have a page, it is updated automatically, with an interval of 10 seconds.
Sometimes certain "text" appears on the page.
How can I make the script search for this text and, if it exists, give out a sound notification?
The script itself will work through the browser and greasemonkey.

Answer 1

I agree, using greasemonkey is the best way.
Well, take a js-lib that plays a sound, and at the end of the DocumentReady loading - parse the entire DOM: document.innerHTML (like so ..)