If statement error

Hello all,

I’m trying make a theme that has different background images for varying pages of a website. I’ve attempted to use if statements to do this using the code below:

<?php /*
Template Name: People
*/?>

<?php get_header(); ?>

<?php if ( is_page('page1')){ ?>
<img src="<?php bloginfo('stylesheet_directory'); ?>/images/backgrounds/image1.jpg" class="bg" align="middle" />
<?php if ( is_page('page2')){ ?>
<img src="<?php bloginfo('stylesheet_directory'); ?>/images/backgrounds/image2.jpg" class="bg" align="middle" />
<?php if ( is_page('page3')){ ?>
<img src="<?php bloginfo('stylesheet_directory'); ?>/images/backgrounds/image3.jpg" class="bg" align="middle" />
<?php } else { ?>
<img src="<?php bloginfo('stylesheet_directory'); ?>/images/backgrounds/default.jpg" class="bg" align="middle" />
<?php } ?>

<div id="blogcontent" class="content-white researchers">

<div id="submenu">
<?php if ( !function_exists('dynamic_sidebar')
        || !dynamic_sidebar('people') ) : ?>
<?php endif; ?>
</div>

<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

<div id="scroll">

<div id="content">
<h2><?php the_title(); ?></h2>

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

</div>

<?php endwhile; else: ?>

<p>Sorry, no posts matched your criteria.</p>

<?php endif; ?>

<div align="center"><?php posts_nav_link(); ?></div>

</div>

</body>
</html>

However, when I try to use this – I get an error referencing the last line of the code above:

Parse error: syntax error, unexpected $end in /home/user123/user123.com/dev/wp/wp-content/themes/wpthemefolder/page-template1.php on line 56

Can anyone tell me how I can fix this? Am I missing something?

Thank you in advance.
MJ