use drupal_get_path() instead

in page.tpl.php I found stuff like this

<img src="<?php global $base_url; echo $base_url.'/'.$directory; ?>/images/rss.png" alt="RSS"/>

That should be replaced with:

<img src="<?php echo drupal_get_path('theme', 'touch'); ?>/images/rss.png" alt="RSS"/>

Like this its also easier for subtheme authors who want to implement page.tpl.php without copy the icons