Yii Framework Expert! To debug couple problems For MAC

Hello. we created a small website, with couple special functions. Our website, has image galleries and play music with every image. We inserted special option like : "Full screen Mode" Responsive design etc.. The problem is, On ipads, the fullscreen mode not working at all also, there is some problem with MUTE button. its just working once.. if im continue clkcking on that button, its not reacting. also, there is some strange issue, on MAC and MACBOOK . The bottom thumbnails not showing up when im loading the site. they appear only after im refreshing the page.