flash player version check (code)

Hello. I need a code (that should be put on a HTML page) wich automatically checks the Flash Player version installed on the visitor's browser. If the current version is too old, the code should redirect the user to a HTML page(wich has a button linked to the adobe download center page, so he can install the latest flash player version). If the Flash Player version is the needed one, or higher, the code should redirect the visitor to the flash site so he can view it. PLEASE HELP, I really need this one, THANK YOU

Pleheheheheeeeeaase Help :((