--- block.tpl.php.org	2008-07-07 21:53:38.178403700 -0400
+++ block.tpl.php	2008-07-07 21:56:52.319298200 -0400
@@ -1,7 +1,7 @@
-<div class="block">
+<div id="block-<?php print $block->module .'-'. $block->delta; ?>" class="block block-<?php print $block->module ?>">
 
 <?php if ($block->subject): ?>
   <h3><?php print $block->subject ?></h3>
 <?php endif;?>
 
   <?php print $block->content ?>