Demo for a firefox plugin -- 2

I need someone to implement two prototypes for Firefox Outlook Plugin: Step 5: -Implement a demo of accessing the names of attached files right before sending (or on mouse-down-event of "Send"). -Implement a demo of cancelling the "Send" event only if the name of any of the attached files is "[login to view URL]". And as soon as the attached file "[login to view URL]" is removed, the email should be sent on clicking "Send" button. This is a step of a larger project, whose entire description I have attached. You would be hired to implement just this particular step, and will be paid right away after the completion and testing of the work. If you are successful, you might be hired for the rest of the project. This project is for a trusted client. No milestones or upfront payments will be created until the project is completed, and tested by the client, and until the client is happy. Whoever bids $60 or less will be hired immediately.