if (function_exists('register_sidebar'))
    $i = 1;
while ($i <= 10) {
    register_sidebar(array(
        'name' => __('Sidebar '.$i, 'twentyten'),
        'id' => 'sidebar-text-box-'.$i,
        'before_widget' => '<div class="sidebar-text-box"><div class="sidebar-text-top"></div><div class="sidebar-text-mid">',
        'after_widget' => '</div><div class="sidebar-text-bottom"></div></div>',
        'before_title' => '<h3>',
        'after_title' => '</h3>',
    ));
    $i++;
}