Index: wp-includes/pluggable-functions.php
===================================================================
--- wp-includes/pluggable-functions.php	(revision 3520)
+++ wp-includes/pluggable-functions.php	(working copy)
@@ -332,6 +332,7 @@
 	}
 	$notify_message .= get_permalink($comment->comment_post_ID) . "#comments\r\n\r\n";
 	$notify_message .= sprintf( __('To delete this comment, visit: %s'), get_settings('siteurl').'/wp-admin/post.php?action=confirmdeletecomment&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
+	$notify_message .= sprintf( __('To mark this comment as spam, visit: %s'), get_settings('siteurl').'/wp-admin/post.php?action=confirmdeletecomment&delete_type=spam&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
 
 	$wp_email = 'wordpress@' . preg_replace('#^www\.#', '', strtolower($_SERVER['SERVER_NAME']));
 
@@ -389,6 +390,7 @@
 	$notify_message .= __('Comment: ') . "\r\n" . $comment->comment_content . "\r\n\r\n";
 	$notify_message .= sprintf( __('To approve this comment, visit: %s'),  get_settings('siteurl').'/wp-admin/post.php?action=mailapprovecomment&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
 	$notify_message .= sprintf( __('To delete this comment, visit: %s'), get_settings('siteurl').'/wp-admin/post.php?action=confirmdeletecomment&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
+	$notify_message .= sprintf( __('To mark this comment as spam, visit: %s'), get_settings('siteurl').'/wp-admin/post.php?action=confirmdeletecomment&delete_type=spam&p='.$comment->comment_post_ID."&comment=$comment_id" ) . "\r\n";
 	$notify_message .= sprintf( __('Currently %s comments are waiting for approval. Please visit the moderation panel:'), $comments_waiting ) . "\r\n";
 	$notify_message .= get_settings('siteurl') . "/wp-admin/moderation.php\r\n";
 
Index: wp-admin/edit-comments.php
===================================================================
--- wp-admin/edit-comments.php	(revision 3520)
+++ wp-admin/edit-comments.php	(working copy)
@@ -43,13 +43,21 @@
 	foreach ($_POST['delete_comments'] as $comment) : // Check the permissions on each
 		$comment = (int) $comment;
 		$post_id = $wpdb->get_var("SELECT comment_post_ID FROM $wpdb->comments WHERE comment_ID = $comment");
-		$authordata = get_userdata( $wpdb->get_var("SELECT post_author FROM $wpdb->posts WHERE ID = $post_id") );
-		if ( current_user_can('edit_post', $post_id) ) :
-			wp_set_comment_status($comment, "delete");
+		// $authordata = get_userdata( $wpdb->get_var("SELECT post_author FROM $wpdb->posts WHERE ID = $post_id") );
+		if ( current_user_can('edit_post', $post_id) ) {
+			if ( !empty( $_POST['spam_button'] ) )
+				wp_set_comment_status($comment, 'spam');
+			else
+				wp_set_comment_status($comment, 'delete');
 			++$i;
-		endif;
+		}
 	endforeach;
-	echo "<div class='wrap'><p>" . sprintf(__('%s comments deleted.'), $i) . "</p></div>";
+	echo '<div style="background-color: rgb(207, 235, 247);" id="message" class="updated fade"><p>';
+	if ( !empty( $_POST['spam_button'] ) )
+		printf(__('%s comments marked as spam.'), $i);
+	else
+		printf(__('%s comments deleted.'), $i);
+	echo '</p></div>';
 endif;
 
 if (isset($_GET['s'])) {
@@ -96,13 +104,14 @@
         <p><?php _e('Posted'); echo ' '; comment_date('M j, g:i A');  
 			if ( current_user_can('edit_post', $comment->comment_post_ID) ) {
 				echo " | <a href=\"post.php?action=editcomment&amp;comment=".$comment->comment_ID."\">" . __('Edit Comment') . "</a>";
-				echo " | <a href=\"post.php?action=deletecomment&amp;p=".$comment->comment_post_ID."&amp;comment=".$comment->comment_ID."\" onclick=\"return deleteSomething( 'comment', $comment->comment_ID, '" . sprintf(__("You are about to delete this comment by &quot;%s&quot;.\\n&quot;Cancel&quot; to stop, &quot;OK&quot; to delete."), wp_specialchars( $comment->comment_author, 1 ))  . "' );\">" . __('Delete Comment') . "</a> &#8212; ";
+				echo " | <a href=\"post.php?action=deletecomment&amp;p=".$comment->comment_post_ID."&amp;comment=".$comment->comment_ID."\" onclick=\"return deleteSomething( 'comment', $comment->comment_ID, '" . sprintf(__("You are about to delete this comment by &quot;%s&quot;.\\n&quot;Cancel&quot; to stop, &quot;OK&quot; to delete."), wp_specialchars( $comment->comment_author, 1 ))  . "' );\">" . __('Delete Comment') . "</a> ";
+				echo " | <a href=\"post.php?action=deletecomment&amp;delete_type=spam&amp;p=".$comment->comment_post_ID."&amp;comment=".$comment->comment_ID."\" onclick=\"return deleteSomething( 'comment-as-spam', $comment->comment_ID, '" . sprintf(__("You are about to mark as spam this comment by &quot;%s&quot;.\\n&quot;Cancel&quot; to stop, &quot;OK&quot; to mark as spam."), wp_specialchars( $comment->comment_author, 1 ))  . "' );\">" . __('Mark Comment as Spam') . "</a> ";
 			} // end if any comments to show
 			// Get post title
 			if ( current_user_can('edit_post', $comment->comment_post_ID) ) {
 				$post_title = $wpdb->get_var("SELECT post_title FROM $wpdb->posts WHERE ID = $comment->comment_post_ID");
 				$post_title = ('' == $post_title) ? "# $comment->comment_post_ID" : $post_title;
-				?> <a href="post.php?action=edit&amp;post=<?php echo $comment->comment_post_ID; ?>"><?php printf(__('Edit Post &#8220;%s&#8221;'), stripslashes($post_title)); ?></a>
+				?> | <a href="post.php?action=edit&amp;post=<?php echo $comment->comment_post_ID; ?>"><?php printf(__('Edit Post &#8220;%s&#8221;'), stripslashes($post_title)); ?></a>
 				<?php } ?>
 			 | <a href="<?php echo get_permalink($comment->comment_post_ID); ?>"><?php _e('View Post') ?></a></p>
 		</li>
@@ -154,7 +163,8 @@
 		} // end foreach
 	?></table>
     <p><a href="javascript:;" onclick="checkAll(document.getElementById('deletecomments')); return false; "><?php _e('Invert Checkbox Selection') ?></a></p>
-            <p class="submit"><input type="submit" name="Submit" value="<?php _e('Delete Checked Comments') ?> &raquo;" onclick="return confirm('<?php _e("You are about to delete these comments permanently \\n  \'Cancel\' to stop, \'OK\' to delete.") ?>')" />	</p>
+            <p class="submit"><input type="submit" name="delete_button" value="<?php _e('Delete Checked Comments') ?> &raquo;" onclick="return confirm('<?php _e("You are about to delete these comments permanently \\n  \'Cancel\' to stop, \'OK\' to delete.") ?>')" />
+			<input type="submit" name="spam_button" value="<?php _e('Mark Checked Comments as Spam') ?> &raquo;" onclick="return confirm('<?php _e("You are about to mark these comments as spam \\n  \'Cancel\' to stop, \'OK\' to mark as spam.") ?>')" /></p>
   </form>
 <?php
 	} else {
Index: wp-admin/list-manipulation.php
===================================================================
--- wp-admin/list-manipulation.php	(revision 3520)
+++ wp-admin/list-manipulation.php	(working copy)
@@ -63,6 +63,20 @@
 		die('0');
 	}
 	break;
+case 'delete-comment-as-spam' :
+	$id = (int) $_POST['id'];
+
+	if ( !$comment = get_comment($id) )
+		die('0');
+	if ( !current_user_can('edit_post', $comment->comment_post_ID) )
+		die('-1');
+
+	if ( wp_set_comment_status($comment->comment_ID, 'spam') ) {
+		die('1');
+	} else {
+		die('0');
+	}
+	break;
 case 'delete-link-category' :
 	$id = (int) $_POST['id'];
 	if ( 1 == $id )
Index: wp-admin/post.php
===================================================================
--- wp-admin/post.php	(revision 3520)
+++ wp-admin/post.php	(working copy)
@@ -184,7 +184,10 @@
 		die( __('You are not allowed to delete comments on this post.') );
 
 	echo "<div class='wrap'>\n";
-	echo "<p>" . __('<strong>Caution:</strong> You are about to delete the following comment:') . "</p>\n";
+	if ( 'spam' == $_GET['delete_type'] )
+		echo "<p>" . __('<strong>Caution:</strong> You are about to mark the following comment as spam:') . "</p>\n";
+	else
+		echo "<p>" . __('<strong>Caution:</strong> You are about to delete the following comment:') . "</p>\n";
 	echo "<table border='0'>\n";
 	echo "<tr><td>" . __('Author:') . "</td><td>$comment->comment_author</td></tr>\n";
 	echo "<tr><td>" . __('E-mail:') . "</td><td>$comment->comment_author_email</td></tr>\n";
@@ -195,6 +198,8 @@
 
 	echo "<form action='".get_settings('siteurl')."/wp-admin/post.php' method='get'>\n";
 	echo "<input type='hidden' name='action' value='deletecomment' />\n";
+	if ( 'spam' == $_GET['delete_type'] )
+		echo "<input type='hidden' name='delete_type' value='spam' />\n";
 	echo "<input type='hidden' name='p' value='$p' />\n";
 	echo "<input type='hidden' name='comment' value='{$comment->comment_ID}' />\n";
 	echo "<input type='hidden' name='noredir' value='1' />\n";
@@ -226,8 +231,10 @@
 	if ( !current_user_can('edit_post', $comment->comment_post_ID) )
 		die( __('You are not allowed to edit comments on this post.') );
 
-	wp_set_comment_status($comment->comment_ID, "delete");
-	do_action('delete_comment', $comment->comment_ID);
+	if ( 'spam' == $_GET['delete_type'] )
+		wp_set_comment_status($comment->comment_ID, 'spam');
+	else
+		wp_delete_comment($comment->comment_ID);
 
 	if (($_SERVER['HTTP_REFERER'] != "") && (false == $noredir)) {
 		header('Location: ' . $_SERVER['HTTP_REFERER']);
Index: wp-admin/list-manipulation.js
===================================================================
--- wp-admin/list-manipulation.js	(revision 3520)
+++ wp-admin/list-manipulation.js	(working copy)
@@ -32,7 +32,7 @@
 	ajaxDel.onLoading = function() { ajaxDel.myResponseElement.innerHTML = 'Sending Data...'; };
 	ajaxDel.onLoaded = function() { ajaxDel.myResponseElement.innerHTML = 'Data Sent...'; };
 	ajaxDel.onInteractive = function() { ajaxDel.myResponseElement.innerHTML = 'Processing Data...'; };
-	ajaxDel.onCompletion = function() { removeThisItem( what + '-' + id ); };
+	ajaxDel.onCompletion = function() { removeThisItem( what.replace('-as-spam', '') + '-' + id ); };
 	ajaxDel.runAJAX('action=delete-' + what + '&id=' + id);
 	return false;
 }