window.onbeforeunload=function(){ window.scrollTo(0,0) }; disableScrolling(); document.body.style.overflowY="hidden"; document.body.style.heigth="100vh"; document.getElementById("tombol-buka").onclick=function(){ myFunction() }; function myFunction(){ document.body.style.overflowY="unset"; document.getElementById("tombol-buka"); enableScrolling(); playAudio() } function disableScrolling(){ var x=window.scrollX; var y=window.scrollY; window.onscroll=function(){ window.scrollTo(x,y) } } function enableScrolling(){ window.onscroll=function(){ } } function playAudio(){ var isYT = false; if(document.body.contains(document.getElementById("song"))) { document.getElementById("song").play(); isYT = false; } else { isYT = true; player.playVideo(); } }