I need javascript written for an online booking form from a client website.

General information for the website: Hotel in Scotland
Kind of development: Customization of existing website
Description of every page/module: I need some javascript written to tie an online booking calendar to my clients booking engine. The online form has a date selector which needs to carry the chosen arrival date and number of nights through to populate the online booking engine page.
Description of requirements/features: The booking calendar can be found on the following page http://www.galleyoflorne.co.uk/golnew/html/about-the-galley.html and the online booking engine is located here http://www.freetobook.com/affiliates/reservation.php?w_id=6485&w_tkn=GNoBvIF3fuu6KhYgRkpQjscxAzlleFJywhmpaUAmUAXIhizhI55DR2lc3IADX.

When a customer enters their arrival date and number of nights required, the script must send this information to the freetobook booking engine so the customer does not have to re-enter their required dates.
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