The db utility had the wrong code example for database_exists(). Fixes #26
diff --git a/user_guide/database/utilities.html b/user_guide/database/utilities.html
index d4296fe..ac38416 100644
--- a/user_guide/database/utilities.html
+++ b/user_guide/database/utilities.html
@@ -102,13 +102,13 @@
 }</code>
 
 
-<h2><a name="exists"></a>$this->db->database_exists();</h2>
+<h2><a name="exists"></a>$this->dbutil->database_exists();</h2>
 
 <p>Sometimes it's helpful to know whether a particular database exists.
 Returns a boolean TRUE/FALSE.  Usage example:</p>
 
 <code>
-if ($this->db->database_exists('database_name'))<br />
+if ($this->dbutil->database_exists('database_name'))<br />
 {<br />
 &nbsp;&nbsp; // some code...<br />
 }