Song Request scrip

We are looking for a web application that we can add to our existing [login to view URL] it will entitle is a script that can be inserted into our existing template,that the listners of a radiostation can go to request a song to be [login to view URL] would like the dj at the time to be able to have a seperate webpage(like an admin page) open that will refresh about every 30 seconds to display the list of songs [login to view URL] would also like the number of request to be saved in a databse and the stats to be displayed on the dj page [login to view URL] example if a song that was just requested had been requested 10 times today we would like it to be displayed so that it may be added to a most request list on our [login to view URL] posibally even a script that we can add to our existing template that will display the top 10 songs of the [login to view URL] last part of the application would be a way to dump a database after so many days to keep from cluttering up the [login to view URL] just have a way to clean the databse or to rewrite the database every night. The databse only needs to be saved daily it can be cleared after every day to avoid having a full database of usless request.