Schreiben einer iPhone-Anwendung

Hello! I built a iOS app basing on the AIR SDK. In the app's main screen there are some buttons. If the user click on the buttons a mp3 file is played. (clicking button 1 let [login to view URL] play, clicking button 2 let [login to view URL] play and so on). For some reasons I need for the next app update to change out the app's screen (standard built with Xcode) with an external website. That means: In the next app version the app must call a website from my server and display it in the app. That website will look nearly identical to the old app screen. But of course the functionality must work too. So there will be buttons displayed on the website (built in css design) and when the app user click on it the app must play the relating mp3 file which is stored on the iPhone. So it is a must that an actions on the website (clicking a button) is trackable by the app's Xcode. I think Javascript is the best script code to manage this. But I do not know how I have to implement this. So what I need is a very simple app that - call a website from my browser to display it within the app - play a mp3 file when the user click on a button on the website That is all. I can build the website including the necessary Javascript on my own. Or you send it to me and I upload it to my web server. Following projects are possible. Best regards Marc