Has anyone ever filled in a web form remotely from R?

I'd like to do some archery statistics in R using my scores. There is a very handy webpage, that gives you the classification and handicaps http://www.archersmate.co.uk/, which I naturally would want to include in my stats sheet.

Is it possible to fill this form in remotely and to get the results back to R???

Otherwise I would have to get all handicap tables and stick them into a database myself.

UPDATE: We've narrowed the problem down to the fact, that the form submit button is written in javascript.

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