function detect()
    {
        var browser = BrowserDetect.browser;
        var version = BrowserDetect.version;

        jQuery("#alerte").hide();

        if(browser == "Explorer" && version < 7)
        {
            jQuery("#alerte").css("top" , "250px").show();
        }
    }

    function closeAlert()
    {
        jQuery("#alerte").slideUp();
    }