function hide_details(){
        var httpRequest;

        if (window.XMLHttpRequest) httpRequest = new XMLHttpRequest();
        else if (window.ActiveXObject) httpRequest = new ActiveXObject('Msxml2.XMLHTTP');

        httpRequest.open('GET', 'set_session_var.php?var=details&val=0', true);

        httpRequest.onreadystatechange = function (evt) {
                if (httpRequest.readyState == 4) {
                }
        };

        httpRequest.send(null);

        document.getElementById('exif_data').style.display = 'none';
        document.getElementById('exif_toggle').innerHTML = '<a accesskey="d" href="javascript:void(0);" onclick="show_details();"><b>Exif bilgilerini göster</b></a>';
}

function show_details(){
        var httpRequest;

        if (window.XMLHttpRequest) httpRequest = new XMLHttpRequest();
        else if (window.ActiveXObject) httpRequest = new ActiveXObject('Msxml2.XMLHTTP');

        httpRequest.open('GET', 'set_session_var.php?var=details&val=1', true);

        httpRequest.onreadystatechange = function (evt) {
                if (httpRequest.readyState == 4) {
                }
        };

        httpRequest.send(null);

        document.getElementById('exif_data').style.display = '';
        document.getElementById('exif_toggle').innerHTML = '<a accesskey="d" href="javascript:void(0);" onclick="hide_details();"><b>Exif bilgilerini gizle</b></a>';
}