var isSound = false;

function ManageSoundFlash(){
	if(isSound){
		stopMusicFlash();
		isSound = false;
	}else{
		playMusicFlash();
		isSound = true;
	}
}

function stopMusicFlash() {
	getMovieName("flash_gravity").callSoundControlPlay(); 
}
function playMusicFlash() {
	getMovieName("flash_gravity").callSoundControlStop(); 
}

function getMovieName(movieName) {
    if (navigator.appName.indexOf("Microsoft") != -1) {
        return window[movieName]
   }
   else {
       return document[movieName]
   }
}