Upgrade our online music player

We wish to hire a developer in order to upgrade our responsive web browser-based music player found here: [login to view URL] The player has a built-in browser that automatically displays web pages, without being necessary for the listener to manually navigate to each of them. The built-in browser does not have an address bar or navigation buttons. Each page that is displayed corresponds to an artist participating in the song/music currently playing. The pages optionally contain an ad so that the corresponding artists (e.g. the singer, the composer etc) can get profit every time someone is listening to his/her song and view the ads from our player. If the rotation is completed but the song/music hasn't finished yet, the player starts displaying the ads from the beginning (2nd ads' round, 3rd ads' round, X ads' round). To understand how our player works, load the attached mp3 file to it and press Play. After a couple of seconds, you will see the test pages to automatically being displayed one after the other. FOR DETAILED INFORMATION PLEASE DOWNLOAD OUR PDF FILE. PAYMENT We had some very bad co-operations with two developers that were supposed to upgrade the player's code and design. The first one has ruined the player's code so we had to pay a third developer to re-develop the player. The second developer was hired for re-designing the player's surface. He finally realized that he couldn't adjust his design to the player's code. We paid him in order to GET RID OF HIM although freelancer.com suggest us not to do so). We finally hired another developer who was able to do it! This time WE WILL NOT ACCEPT ANY OTHER ISSUE. Developer will be paid since: 1. We will test and ensure that the existing player's functions are working and that he/she hasn't ruined the code (especially the file recognition process). 2. The upgrade we are asking works properly without affecting the existing functions of the player. 3. He/she will submit his/her final work to us in order to test it in OUR SERVER. When the test is successful, he/she will be paid in full. If you feel that you got the knowledge, skills, and experience to do the upgrade and if the payment rules are ok for you, please apply for the job FOR DETAILED INFORMATION PLEASE DOWNLOAD OUR PDF FILE. Thank you, Vasilis Threpsiadis