Blackberry Timing App

I need a javascript application for my Blackberry. I will come up with a name for it and it will be displayed at the top of the app. Not sure yet what I'm going to call it. It would ask for how many minutes (0-60). I then need those minutes divided by 15 second intervals. I would then press a key to begin and another to stop or reset. At the minute mark it would have a distinct tone. At 15, 30, and 45 seconds other different distinct tones. So 4 tones total maybe increasing in pitch or whatever. It would be ideal if I could record my voice or say 15 Read, 30 Read, 45 Read and minute X Read instead of the tones. I would have the code and own all rights to this app when completed and before complete payment. At a later date I want to improve this app to collect data and store it in a database.