Changing logo based on subdomain access

Trying to make users that enter through predetermined subdomains see a different logo(and eventually a separate login). I tried changing the logo section of my header to the following but the site becomes inaccessible when I do.

<div class="logo">

          <?php if(of_get_option('logo_type') == 'text_logo'){?>

          	<?php if( is_front_page() || is_home() || is_404() ) { ?>
              <h1><a href="<?php bloginfo('url'); ?>/" title="<?php bloginfo('description'); ?>"><?php bloginfo('name'); ?></a></h1>
            <?php } else { ?>
              <h2><a href="<?php bloginfo('url'); ?>/" title="<?php bloginfo('description'); ?>"><?php bloginfo('name'); ?></a></h2>
            <?php } ?>
		  <p class="description"><?php bloginfo('description'); ?></p>

		  <?php } else { ?>

          	<?php if(of_get_option('logo_url') != ''){ ?>

			  <?php if( $_SERVER['HTTP_HOST'] == 'wlt.thesojo.net') { ?>
				<a href="<?php bloginfo('url'); ?>/" id="logo"><img src="/wp-content/uploads/swl.jpg" alt="<?php bloginfo('name'); ?>" title="<?php bloginfo('description'); ?>"></a>
              <?php else{ ?>
				<a href="<?php bloginfo('url'); ?>/" id="logo"><img src="<?php echo of_get_option('logo_url', "" ); ?>" alt="<?php bloginfo('name'); ?>" title="<?php bloginfo('description'); ?>"></a>
		      <?php } ?>	

			<?php } else { ?>

            	<a href="<?php bloginfo('url'); ?>/" id="logo"><img src="<?php bloginfo('template_url'); ?>/images/logo.png" alt="<?php bloginfo('name'); ?>" title="<?php bloginfo('description'); ?>"></a>

			<?php } ?>

          <?php }?>

		  <?php }?>

        </div>

Any ideas?