Index: branches/2.8.x/wb/include/captcha/captcha.php
===================================================================
--- branches/2.8.x/wb/include/captcha/captcha.php	(revision 1437)
+++ branches/2.8.x/wb/include/captcha/captcha.php	(revision 1438)
@@ -136,7 +136,7 @@
 		if($action=='all') {
 			switch(CAPTCHA_TYPE) {
 				case 'text': // text-captcha
-					?><table class="captcha_table"><tr>
+					?><table class="captcha_table" summary="captcha control"><tr>
 					<td class="text_captcha">
 						<?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?>
 					</td>
@@ -146,7 +146,7 @@
 					</tr></table><?php
 					break;
 				case 'calc_text': // calculation as text
-					?><table class="captcha_table"><tr>
+					?><table class="captcha_table" summary="captcha control"><tr>
 					<td class="text_captcha">
 						<?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?>
 					</td>
@@ -157,7 +157,7 @@
 					break;
 				case 'calc_image': // calculation with image (old captcha)
 				case 'calc_ttf_image': // calculation with varying background and ttf-font
-				  ?><table class="captcha_table"><tr>
+				  ?><table class="captcha_table" summary="captcha control"><tr>
 					<td class="image_captcha">
 						<?php echo "<iframe class=\"captcha_iframe\" width=\"$captcha_width\" height=\"$captcha_height\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\" frameborder=\"0\" name=\"captcha_iframe_$sec_id\" src=\"". WB_URL ."/include/captcha/captcha.php?display_captcha_X986E21=1&amp;s=$sec_id"; ?>">
 						<img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t&amp;s=$sec_id"; ?>" alt="Captcha" />
@@ -171,7 +171,7 @@
 				// normal images
 				case 'ttf_image': // captcha with varying background and ttf-font
 				case 'old_image': // old captcha
-					?><table class="captcha_table"><tr>
+					?><table class="captcha_table" summary="captcha control"><tr>
 					<td class="image_captcha">
 						<?php echo "<iframe class=\"captcha_iframe\" width=\"$captcha_width\" height=\"$captcha_height\" scrolling=\"no\" marginheight=\"0\" marginwidth=\"0\" frameborder=\"0\" name=\"captcha_iframe_$sec_id\" src=\"". WB_URL ."/include/captcha/captcha.php?display_captcha_X986E21=1&amp;s=$sec_id"; ?>">
 						<img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t&amp;s=$sec_id"; ?>" alt="Captcha" />