Финансово-хозяйственная деятельность

var elem = document.getElementById("AppClientFullscreenButton"); function openFullscreen() { if (elem.requestFullscreen) { elem.requestFullscreen(); } else if (elem.mozRequestFullScreen) { /* Firefox */ elem.mozRequestFullScreen(); } else if (elem.webkitRequestFullscreen) { /* Chrome, Safari and Opera */ elem.webkitRequestFullscreen(); } else if (elem.msRequestFullscreen) { /* IE/Edge */ elem.msRequestFullscreen(); } }