Index: branches/5.3.x/units/posts/post_tp.php
===================================================================
diff -u -N -r15694 -r16397
--- branches/5.3.x/units/posts/post_tp.php	(.../post_tp.php)	(revision 15694)
+++ branches/5.3.x/units/posts/post_tp.php	(.../post_tp.php)	(revision 16397)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: post_tp.php 15694 2013-02-19 11:30:18Z alex $
+* @version	$Id: post_tp.php 16397 2016-11-12 17:36:29Z alex $
 * @package	In-Bulletin
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -145,28 +145,41 @@
 		}
 
 		/**
-		 * Checks if poster signature needs to be shown together with post
+		 * Checks if poster signature needs to be shown together with post.
 		 *
-		 * @param Array $params
-		 * @return bool
+		 * @param array $params Tag params.
+		 *
+		 * @return boolean
 		 */
-		function ShowPostSignature($params)
+		protected function ShowPostSignature(array $params)
 		{
+			static $show_signatures;
+
+			if ( !isset($show_signatures) ) {
+				if ( $this->Application->LoggedIn() ) {
+					$show_signatures = $this->Application->RecallPersistentVar('bb_signatures');
+				}
+				else {
+					$show_signatures = false;
+				}
+			}
+
+			if ( !$show_signatures ) {
+				return false;
+			}
+
+			/** @var kDBItem $object */
 			$object = $this->getObject($params);
-			$post_options = $object->GetDBField('Options');
 
+			/** @var PostHelper $post_helper */
 			$post_helper = $this->Application->recallObject('PostHelper');
-			/* @var $post_helper PostHelper */
 
-			// show poster signature in this post
-			if ($post_helper->GetPostOption('show_sig', $post_options)) {
-				// logged-in user wishes to view signatures in posts
-                $show_other_signatures = $this->Application->RecallPersistentVar('bb_signatures');
-                if ($show_other_signatures) {
-                	// don't show signature when it is empty
-                	$signature = $this->getUserSignature($object->GetDBField('CreatedById'));
-                	return strlen(trim($signature)) ? true : false;
-                }
+			// Show poster signature in this post.
+			if ( $post_helper->GetPostOption('show_sig', $object->GetDBField('Options')) ) {
+				// Don't show signature when it is empty.
+				$signature = $this->getUserSignature($object->GetDBField('CreatedById'));
+
+				return strlen(trim($signature)) ? true : false;
 			}
 
 			return false;
@@ -310,4 +323,4 @@
 			}
 			return parent::PageLink($params);
 		}
-	}
\ No newline at end of file
+	}