function exifOn() {
    var object = document.getElementById("exif");
    if (navigator.platform == "Win32" && navigator.appName == "Microsoft Internet Explorer") {
        object.style.background = "";
    }
    object.style.display = "block";
}
function exifOff() {
    var object = document.getElementById("exif")
    object.style.display = "none";
}