function detectBrowser() {
    var browser = navigator.appName;
    var version = navigator.appVersion.split('MSIE');
    version = parseInt(version[1]);

    if ((browser == "Microsoft Internet Explorer") && (version <= 6)) {
        StopIE6();
    }
}

function StopIE6() {
    var StopBox = $("#StopIe6");
    StopBox.show();

    var paper = $(".papier");
    paper.css("margin-top", "80px");
}

$(document).ready(function() {
   detectBrowser();    
   $("a[rel^='prettyPhoto']").prettyPhoto();
});