function getFB()
{
    var browser = navigator.appName;
	var version = 0;

	if (/MSIE (\d+\.\d+);/.test(navigator.userAgent)){ //test for MSIE x.x;
		var ieversion=new Number(RegExp.$1) // capture x.x portion and store as a number
		if (ieversion>=8)
			version = 8;
		else if (ieversion>=7)
			version = 7;
		else if (ieversion>=6)
			version = 6;
		else if (ieversion>=5)
			version = 5;
	}

	if (
			(
				(browser=="Microsoft Internet Explorer")
				&&
				(version>7)
			)
			||
			(browser != "Microsoft Internet Explorer")
		)
    {
        document.write("                            <div style=\"padding: 0; border: 0; margin: 0\">");
        document.write("                                <fieldset>");
        document.write("                                    \n");
        document.write("                                      <div>");
        document.write("                                         <fb:login-button v=\"2\" size=\"small\" onlogin=\"window.location.reload(true);\" onclick=\"pageTracker._trackEvent('facebook', 'Login', 'Accesso utente facebook');\">Connettiti a Facebook</fb:login-button>");
        document.write("                                      </div>");
        document.write("                                      <div>");
        document.write("                                         <fb:profile-pic uid=\"loggedinuser\" size=\"square\" facebook-logo=\"true\"></fb:profile-pic>");
        document.write("                                      </div>");
        document.write("                                      <div>");
        document.write("                                         <fb:name uid=\"loggedinuser\" useyou=\"false\" linked=\"true\"></fb:name>");
        document.write("\n");
        document.write("                                      </div>");
        document.write("\n");
        document.write("                                </fieldset>");
        document.write("                        </div>");
    }
}