// Pagination
function my_theme_navigation() {
    global $shortname;

    if ( 'next-previous-links' == get_theme_mod( 'pagination_style' ) ) :
    // the block for next-prev navigation
    echo '<div class="button left">';
    next_posts_link('Older');
    echo '</div>';
    echo '<div class="button right">';
    previous_posts_link ('Newer');
    echo '</div>'; else :
    // the block for pagination
    global $wp_query;
    $big = 999999999;
    // need an unlikely integer
    echo paginate_links(            array(                'base' => str_replace( $big, '%#%', get_pagenum_link( $big ) ),                'format' => '?paged=%#%','end_size'     => 1,'mid_size'     => 2,                'current' => max( 1, get_query_var('paged') ),                 'total' => $wp_query->max_num_pages            )        );
    endif;
}