div in excerpt loop

<?php get_header(); ?>

<div id="container">
<div id="post_content">
<div class="main_adjust">

<!-- Grab posts -->
<?php
$cat = get_option('to_cat_home');
$per_page = get_option('to_count_home');
query_posts("cat=${cat}&posts_per_page=${per_page}&paged=".$paged);
if (have_posts())
?>
<?php while (have_posts()) : the_post(); ?>


<!-- Post formats -->
<?php
if(has_post_format('aside'))
    get_template_part('content', 'aside');
elseif ( has_post_format( 'chat' )) {
    get_template_part('content', 'chat');
}
elseif ( has_post_format( 'gallery' )) {
    get_template_part('content', 'gallery');
}
elseif ( has_post_format( 'image' )) {
    get_template_part('content', 'image');
}
elseif ( has_post_format( 'link' )) {
    get_template_part('content', 'link');
}
elseif ( has_post_format( 'quote' )) {
    get_template_part('content', 'quote');
}
elseif ( has_post_format( 'status' )) {
    get_template_part('content', 'status');
}
elseif ( has_post_format( 'video' )) {
    get_template_part('content', 'video');
}
elseif ( has_post_format( 'audio' )) {
    get_template_part('content', 'audio');
}
else {
$format = get_post_format();
if ( false === $format ) {
 ?>

<!-- Begin excerpt wrap -->
<div class="excerpt_wrap">
<div class="excerpt_inside">
    <?php if ( has_post_thumbnail() ) { ?><?php } ?>
    <a href="<?php the_permalink() ?>">
    <?php the_post_thumbnail( 'thmb-index' ); ?>
    </a>
    <div class="excerpt_content<?php if ( has_post_thumbnail() ) echo ' with-thumbnail'; ?>">
    <h1 class="index_title"><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h1>
    <span class="sub-title">By <?php the_author_posts_link( ); ?> <span class="sub-title-divider">|</span> <?php the_time('F j, Y'); ?> <span class="sub-title-divider">|</span> <a href="<?php the_permalink(); ?>#respond"><?php comments_number( 'No comments', 'One comment', '% comments' ); ?></a></span>
    <?php the_excerpt(); ?>
    </div><!-- .excerpt_content -->

<!-- End excerpt wrap -->
</div>
</div>

<?php } // ending the if ( false === $format ) ...
	} // end else
		?>

<?php //NEW SECTION
	if( $wp_query->current_post == 1 ) : //for example: extra block after second excerpt ?>
	<!-- use excerpt wrap to keep same structure -->
	<div class="excerpt_wrap">
	<div class="excerpt_inside">
		<?php
		/*
		/use whatever code you need for this section
		*/
		?>

	</div><!-- End excerpt_inside -->
	</div><!-- End excerpt_wrap -->
	<?php endif;
//end of NEW SECTION ?>

<?php endwhile; ?>

<!-- Next/Previous entries -->
       <div class="mp_archive">
          <div id="more_posts">
            <div class="oe">
              <?php next_posts_link('&laquo; Older') ?>
            </div>
            <div class="re">
              <?php previous_posts_link ('Newer &raquo;') ?>
            </div>
          </div>
          </div>

</div>
</div>
  <?php get_sidebar(); ?>
</div>
</div>

<?php get_footer(); ?>