function showProgress() { 
    $.fancybox({
        width: '100%',
        height: '100%',
        autoScale: true,
        transitionIn: 'fade',
        transitionOut: 'fade',
        modal: true,
        content: '<div style="background-color:#333; padding:10px; color:#FFF">İşleminiz yapılırken lütfen bekleyiniz...</div>',
        overlayOpacity: 0.6,
        overlayColor: '#FFF'
    });

    $("*").css("cursor", "wait");
}

function getFileExtension(filename) {
    return (/[.]/.exec(filename)) ? /[^.]+$/.exec(filename) : undefined;
}