<!--

        // *** Last adapted 13.02.2001 - Alessandro ***

    // convert all characters to lowercase to simplify testing

    var agt=navigator.userAgent.toLowerCase();


        // *** BROWSER VERSION ***

    var is_major = parseInt(navigator.appVersion);

    var is_minor = parseFloat(navigator.appVersion);


// *** NS_Communicator detection ***

    var is_nav  = ((agt.indexOf('mozilla')!=-1) && (agt.indexOf('spoofer')==-1)

                && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera')==-1)

                && (agt.indexOf('webtv')==-1) && (agt.indexOf('hotjava')==-1));

    var is_nav2 = (is_nav && (is_major == 2));

    var is_nav3 = (is_nav && (is_major == 3));

    var is_nav4 = (is_nav && (is_major == 4));

    var is_nav4up = (is_nav && (is_major >= 4));

    var is_navonly      = (is_nav && ((agt.indexOf(";nav") != -1) ||

                          (agt.indexOf("; nav") != -1)) );

    var is_nav6 = (is_nav && (is_major == 5));

    var is_nav6up = (is_nav && (is_major >= 5));

    var is_gecko = (agt.indexOf('gecko') != -1);



// On IE5, these return 4, so use is_ie5up to detect IE5.


    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));

    var is_ie3    = (is_ie && (is_major < 4));

    var is_ie4    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5")==-1) );

    var is_ie4up  = (is_ie  && (is_major >= 4));

    var is_ie5    = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.0")!=-1) );

    var is_ie5_5  = (is_ie && (is_major == 4) && (agt.indexOf("msie 5.5") !=-1));

    var is_ie5up  = (is_ie  && !is_ie3 && !is_ie4);

    var is_ie5_5up =(is_ie && !is_ie3 && !is_ie4 && !is_ie5);

    var is_ie6_up =(is_ie && (is_major == 4) && (agt.indexOf("msie 6.0") !=-1));



    // On AOL4, returns false if IE3 is embedded browser

    // or if this is the first browser window opened.  Thus the

    // variables is_aol, is_aol3, and is_aol4 aren't 100% reliable.

    var is_aol   = (agt.indexOf("aol") != -1);

    var is_aol3  = (is_aol && is_ie3);

    var is_aol4  = (is_aol && is_ie4);

    // Opera and WebTV spoof Navigator.  We do strict client detection.

    // If you want to allow spoofing, take out the tests for opera and webtv.


    var is_opera = (agt.indexOf("opera") != -1);

        var is_opera4 = (agt.indexOf("opera 4") != -1);

        var is_opera5 = (agt.indexOf("opera 5") != -1);

        var is_opera5up = (is_opera && (is_major >=4));


    var is_webtv = (agt.indexOf("webtv") != -1);


    var is_TVNavigator = ((agt.indexOf("navio") != -1) || (agt.indexOf("navio_aoltv") != -1));

        var is_AOLTV = is_TVNavigator;


    var is_hotjava = (agt.indexOf("hotjava") != -1);

    var is_hotjava3 = (is_hotjava && (is_major == 3));

    var is_hotjava3up = (is_hotjava && (is_major >= 3));


    // *** OS ***

    var is_win   = ( (agt.indexOf("win")!=-1) || (agt.indexOf("16bit")!=-1) );

    // NOTE: On Opera 3.0, the userAgent string includes "Windows 95/NT4" on all

    // Win32, so you CAN'T distinguish between Win95 and WinNT.

    var is_win95 = ((agt.indexOf("win95")!=-1) || (agt.indexOf("windows 95")!=-1));



    // is this a 16 bit compiled version?

    var is_win16 = ((agt.indexOf("win16")!=-1) ||

               (agt.indexOf("16bit")!=-1) || (agt.indexOf("windows 3.1")!=-1) ||

               (agt.indexOf("windows 16-bit")!=-1) );



    var is_win31 = ((agt.indexOf("windows 3.1")!=-1) || (agt.indexOf("win16")!=-1) ||

                    (agt.indexOf("windows 16-bit")!=-1));



    // Reliable detection of Win98 may not be possible. It appears that:

    //       - On Nav 4.x and before you'll get plain "Windows" in userAgent.

    //       - On Mercury client, the 32-bit version will return "Win98", but

    //         the 16-bit version running on Win98 will still return "Win95".

    var is_win98 = ((agt.indexOf("win98")!=-1) || (agt.indexOf("windows 98")!=-1));

    var is_winnt = ((agt.indexOf("winnt")!=-1) || (agt.indexOf("windows nt")!=-1));

    var is_win32 = (is_win95 || is_winnt || is_win98 ||

                    ((is_major >= 4) && (navigator.platform == "Win32")) ||

                    (agt.indexOf("win32")!=-1) || (agt.indexOf("32bit")!=-1));



    var is_os2   = ((agt.indexOf("os/2")!=-1) ||

                    (navigator.appVersion.indexOf("OS/2")!=-1) ||

                    (agt.indexOf("ibm-webexplorer")!=-1));



    var is_mac    = (agt.indexOf("mac")!=-1);

    var is_mac68k = (is_mac && ((agt.indexOf("68k")!=-1) ||

                               (agt.indexOf("68000")!=-1)));

    var is_macppc = (is_mac && ((agt.indexOf("ppc")!=-1) ||

                                (agt.indexOf("powerpc")!=-1)));


    var is_linux = (agt.indexOf("linux")!=-1);



// ** weiterleitung ab hier **
//
// variablen:
//
//


    if (is_mac)
         {
         if (is_ie5 || is_ie5_5 || is_ie5up || is_ie5_5up || is_nav4 || is_nav4up || is_nav6 || is_nav6up)
                {
                window.location.replace('a1_home/index.php');
                }
         else
				{
                window.location.replace('error/oldbrowser.php');
                }
         }

    else
         {
                if (is_ie5 || is_ie5_5 || is_ie5up || is_ie5_5up || is_ie6_up  || is_nav4 || is_nav4up || is_nav6 || is_nav6up)
                {
                window.location.replace('a1_home/index.php');
                }
                else
                {
                window.location.replace('error/oldbrowser.php');
                }
         }


// -->