Index: includes/form.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/form.inc,v
retrieving revision 1.426
diff -u -p -r1.426 form.inc
--- includes/form.inc	8 Jan 2010 06:36:34 -0000	1.426
+++ includes/form.inc	13 Jan 2010 15:26:05 -0000
@@ -2990,6 +2990,9 @@ function theme_file($variables) {
  *   for radio and checkbox #type elements as set in system_element_info().
  *   If the #title is empty but the field is #required, the label will
  *   contain only the required marker.
+ * - invisible: Labels are critical for screen readers to enable them to 
+ *   properly navigate through forms but can be visually distracting. This
+ *   property hides the label for everyone except screen readers.
  * - attribute: Set the title attribute on the element to create a tooltip
  *   but output no label element. This is supported only for checkboxes
  *   and radios in form_pre_render_conditional_form_element(). It is used
@@ -3042,6 +3045,7 @@ function theme_form_element($variables) 
       $output .= ' ' . $element['#children'] . "\n";
       break;
 
+    case 'invisible':
     case 'after':
       $output .= ' ' . $element['#children'];
       $output .= ' ' . theme('form_element_label', $variables) . "\n";
@@ -3128,6 +3132,11 @@ function theme_form_element_label($varia
     // Style the label as class option to display inline with the element.
     $attributes['class'] = 'option';
   }
+  elseif ($element['#title_display'] == 'invisible') {
+    // Show label only to screen readers to avoid disruption in visual flows.
+    $attributes['class'] = 'element-invisible';
+  }
+  
   if (!empty($element['#id'])) {
     $attributes['for'] = $element['#id'];
   }
Index: modules/filter/filter.module
===================================================================
RCS file: /cvs/drupal/drupal/modules/filter/filter.module,v
retrieving revision 1.314
diff -u -p -r1.314 filter.module
--- modules/filter/filter.module	28 Dec 2009 21:52:13 -0000	1.314
+++ modules/filter/filter.module	13 Jan 2010 15:26:05 -0000
@@ -844,7 +844,7 @@ function theme_filter_tips_more_info() {
 function theme_filter_guidelines($variables) {
   $format = $variables['format'];
 
-  $name = isset($format->name) ? '<label>' . $format->name . ':</label>' : '';
+  $name = isset($format->name) ? $format->name : '';
   return '<div id="filter-guidelines-' . $format->format . '" class="filter-guidelines-item">' . $name . theme('filter_tips', array('tips' => _filter_tips($format->format, FALSE))) . '</div>';
 }