Amazon Kindle update using Amazon account and Applescript

I’m trying to write a script that will log in to my Amazon account and download articles that I have subscribed to, to my computer and then upload them to my Kindle. The reason why I need to do this is that I live in the U.K. and there isn’t an over the air facility to download documents.

I have managed to write the code that logs in to my Amazon account and launches the ‘Manage My Kindle’ page. I am having problems expanding girid (table) with a plus sign button (it seems to be a DHTML type table) in order to select the article/date (from a drop down list box) that I wish to download.

I would appreciate any help in providing suitable code to open the grid by emulating a click on the ‘plus sign’ button.