Event.observe(window, 'load', function() {
    
    Event.observe(document, 'keydown', function(e) {
        var code;
        if (!e) var e = window.event;
        if (e.keyCode) code = e.keyCode;
        else if (e.which) code = e.which;
        //alert(code);
        window.document.index.processKeyboardDown(code);
    });

    Event.observe(document, 'keyup', function(e) {
        var code;
        if (!e) var e = window.event;
        if (e.keyCode) code = e.keyCode;
        else if (e.which) code = e.which;
        //alert(code);
        window.document.index.processKeyboardUp(code);
    });

    window.document.index.focus();
});