Index: block_class.install
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/block_class/block_class.install,v
retrieving revision 1.4.4.3
diff -u -p -r1.4.4.3 block_class.install
--- block_class.install	31 Jan 2010 21:09:55 -0000	1.4.4.3
+++ block_class.install	3 Dec 2010 18:51:01 -0000
@@ -33,6 +33,12 @@ function block_class_schema() {
         'not null'    => TRUE,
         'description' => t('String containing the classes for the block.'),
       ),
+      'css_id' => array(
+        'type'        => 'varchar',
+        'length'      => '32',
+        'not null'    => TRUE,
+        'description' => t('String containing the ID for the block.'),
+      ),
     ),
     'primary key' => array('module', 'delta'),
   );
@@ -55,3 +61,26 @@ function block_class_install() {
 function block_class_uninstall() {
   drupal_uninstall_schema('block_class');
 }
+
+
+/**
+ * Implementation of hook_update_N(). Alters the structure of the
+ * block_class schema.
+ *
+ * @return array The results of the updates.
+ *
+ */
+function block_class_update_6100() {
+  $status = array();
+
+  $spec = array(
+    'type' => 'varchar',
+    'length' => '32',
+    'not null' => TRUE,
+    'description' => t('String containing the ID for the block.'),
+  );
+
+  db_add_field($status, 'block_class', 'css_id', $spec);
+
+  return $status;
+}
Index: block_class.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/block_class/block_class.module,v
retrieving revision 1.3.4.7
diff -u -p -r1.3.4.7 block_class.module
--- block_class.module	31 Jan 2010 21:28:10 -0000	1.3.4.7
+++ block_class.module	3 Dec 2010 18:51:01 -0000
@@ -20,12 +20,14 @@ function block_class_preprocess_block(&$
   else {
     $variables['block_classes'] = block_class($variables['block']);
   }
+
+  $variables['block_html_id'] = block_class($variables['block'], 'css_id');
 }
 
 
-function block_class($block) {
+function block_class($block, $type = 'css_class') {
   $attributes = block_class_attributes($block);
-  return check_plain($attributes->css_class);
+  return check_plain($attributes->$type);
 }
 
 
@@ -34,7 +36,7 @@ function block_class_attributes($block, 
 
   // If we've not fetched the data, or we're being reset, fetch all the data:
   if (is_null($blocks) || $reset) {
-    $result = db_query("SELECT css_class, module, delta FROM {block_class}");
+    $result = db_query("SELECT css_class, css_id, module, delta FROM {block_class}");
     while ($row = db_fetch_object($result)) {
       $blocks[$row->module][$row->delta] = $row;
     }
@@ -47,6 +49,7 @@ function block_class_attributes($block, 
   else {
     $undef = (object) NULL;
     $undef->css_class = '';
+    $undef->css_id = '';
     return $undef;
   }
 }
@@ -71,6 +74,12 @@ function block_class_form_alter(&$form, 
       '#default_value' => $attributes->css_class,
       '#description' => t('Separate classes with a space.'),
     );
+    $form['block_class']['css_id'] = array(
+      '#type' => 'textfield',
+      '#title' => t('CSS ID'),
+      '#default_value' => $attributes->css_id,
+      '#description' => t('Enter the CSS ID.'),
+    );
 
     $form['#submit'][] = 'block_class_form_submit';
   }
@@ -79,15 +88,16 @@ function block_class_form_alter(&$form, 
 
 function block_class_form_submit($form, &$form_state) {
   if ($form_state['values']['form_id'] == 'block_admin_configure' || $form_state['values']['form_id'] == 'block_add_block_form') {
-    if (isset($form_state['values']['css_class']) && user_access('administer blocks')) {
+    if ((isset($form_state['values']['css_class']) || isset($form_state['values']['css_id'])) && user_access('administer blocks')) {
       $module = $form_state['values']['module'];
       $delta = $form_state['values']['delta'];
       $class = $form_state['values']['css_class'];
+      $id = $form_state['values']['css_id'];
 
       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, $class);
+      if (!empty($class) || !empty($id)) {
+        db_query("INSERT INTO {block_class} (module, delta, css_class, css_id) VALUES ('%s', '%s', '%s', '%s')", $module, $delta, $class, $id);
       }
     }
   }