--- block_class.module.1.2	2009-10-28 14:49:40.000000000 +0100
+++ block_class.module	2009-10-28 14:52:02.000000000 +0100
@@ -2,7 +2,7 @@
 // $Id: block_class.module,v 1.3.4.2 2009/06/03 12:21:45 toddnienkerk Exp $
 
 function block_class_attributes($block) {
-  $ret = db_fetch_object(db_query('SELECT css_class FROM {block_class} WHERE module = "%s" AND delta = "%s"', $block->module, $block->delta));
+  $ret = db_fetch_object(db_query("SELECT css_class FROM {block_class} WHERE module = '%s' AND delta = '%s'", $block->module, $block->delta));
   if ($ret !== FALSE) {
     return $ret;
   }
@@ -44,10 +44,10 @@ function block_class_validate($form, &$f
       $delta = arg(5);
       $class = $form_state['values']['css_class'];
   
-      db_query('DELETE FROM {block_class} WHERE module = "%s" AND delta = "%s"', $module, $delta);
+      db_query("DELETE FROM {block_class} WHERE module = '%s' AND delta = '%s'", $module, $delta);
   
       if (!empty($class)) {
-        db_query('INSERT INTO {block_class} (module, delta, css_class) VALUES ("%s", "%s", "%s")', $module, $delta, $class);
+        db_query("INSERT INTO {block_class} (module, delta, css_class) VALUES ('%s', '%s', '%s')", $module, $delta, $class);
       }
     }
   }