function keyUpHandler(event)
{
    var wizard = $(this),
        options = getOptions(wizard),
        state = getState(wizard);

    if (options.suppressPaginationOnFocus && wizard.find(":focus").is(":input"))
    {
        event.preventDefault();
        return false;
    }

    var keyCodes = { left: 37, right: 39 };
    if (event.keyCode === keyCodes.left)
    {
        event.preventDefault();
        goToPreviousStep(wizard, options, state);
    }
    else if (event.keyCode === keyCodes.right)
    {
        event.preventDefault();
        goToNextStep(wizard, options, state);
    }
}
Handles the keyup DOM event for pagination.

@static
@private
@event keyup
@param event {Object} An event object