FullScreen JS

function openFullscreen() {
    var elem = document.documentElement;

    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();
    }
    $("#cm_fullscreen").attr("onclick", "closeFullscreen()");
    //função gd menus
    $("#CMIframe").css("min-height", window.innerHeight+100);
}

function closeFullscreen() {
    var elem = document.documentElement;
    
    if (document.exitFullscreen) {
        document.exitFullscreen();
    } else if (document.mozCancelFullScreen) { /* Firefox */
        document.mozCancelFullScreen();
    } else if (document.webkitExitFullscreen) { /* Chrome, Safari and Opera */
        document.webkitExitFullscreen();
    } else if (document.msExitFullscreen) { /* IE/Edge */
        document.msExitFullscreen();
    }
    $("#cm_fullscreen").attr("onclick", "openFullscreen()");
    //função gd menus
    $("#CMIframe").css("min-height", window.innerHeight);
}