custom3: single_v1

/* Tests post id if in category 4 or subcats 5-10 choose the 2 col template using sidebar-classes
   in left col. Otherwise, use 1 col template
*/

<?php if (have_posts()) : while (have_posts()) : the_post() ; ?>
<?php  if (in_category (4, 5, 6, 7, 8, 9, 10 ) )
                {
                get_template_part( 'single', '2col' );
                }
        else
                {
                get_template_part ('single', '1col' );
                }
?>
<?php endwhile; endif; ?>