function checkCapsLock( e ) {
    var myKeyCode=0;
    var myShiftKey=false;
    var myMsg='Caps Lock is On.\n\nTo prevent entering your password incorrectly,\nyou should press Caps Lock to turn it off.';

    // Internet Explorer 4+
    if ( document.all ) {
        myKeyCode=e.keyCode;
        myShiftKey=e.shiftKey;

    // Netscape 4
    } else if ( document.layers ) {
        myKeyCode=e.which;
        myShiftKey=( myKeyCode == 16 ) ? true : false;

    // Netscape 6
    } else if ( document.getElementById ) {
        myKeyCode=e.which;
        myShiftKey=( myKeyCode == 16 ) ? true : false;

    }

    // Upper case letters are seen without depressing the Shift key, therefore Caps Lock is on
    if ( ( myKeyCode >= 65 && myKeyCode <= 90 ) && !myShiftKey ) {
        alert( myMsg );

    // Lower case letters are seen while depressing the Shift key, therefore Caps Lock is on
    } else if ( ( myKeyCode >= 97 && myKeyCode <= 122 ) && myShiftKey ) {
        alert( myMsg );

    }
}