Index: branches/5.2.x/core/units/helpers/themes_helper.php
===================================================================
diff -u -N -r14753 -r14843
--- branches/5.2.x/core/units/helpers/themes_helper.php	(.../themes_helper.php)	(revision 14753)
+++ branches/5.2.x/core/units/helpers/themes_helper.php	(.../themes_helper.php)	(revision 14843)
@@ -1,6 +1,6 @@
 <?php
 /**
-* @version	$Id: themes_helper.php 14753 2011-11-09 16:51:47Z alex $
+* @version	$Id: themes_helper.php 14843 2011-12-08 09:24:46Z alex $
 * @package	In-Portal
 * @copyright	Copyright (C) 1997 - 2009 Intechnic. All rights reserved.
 * @license      GNU/GPL
@@ -479,24 +479,28 @@
 		 */
 		function refreshThemes()
 		{
-			$themes_found = Array();
+			$themes_found = Array ();
 
-			$iterator = new DirectoryIterator($this->themesFolder . '/');
-			/* @var $file_info DirectoryIterator */
+			try {
+				$iterator = new DirectoryIterator($this->themesFolder . '/');
+				/* @var $file_info DirectoryIterator */
 
-			foreach ($iterator as $file_info) {
-				$filename = $file_info->getFilename();
+				foreach ($iterator as $file_info) {
+					$filename = $file_info->getFilename();
 
-				if ( $file_info->isDir() && !$file_info->isDot() && $filename != '.svn' && $filename != 'CVS' ) {
-					$theme_id = $this->refreshTheme($filename);
+					if ( $file_info->isDir() && !$file_info->isDot() && $filename != '.svn' && $filename != 'CVS' ) {
+						$theme_id = $this->refreshTheme($filename);
 
-					if ($theme_id) {
-						$themes_found[] = $theme_id;
-						// increment serial of updated themes
-						$this->Application->incrementCacheSerial('theme', $theme_id);
+						if ( $theme_id ) {
+							$themes_found[] = $theme_id;
+							// increment serial of updated themes
+							$this->Application->incrementCacheSerial('theme', $theme_id);
+						}
 					}
 				}
 			}
+			catch ( UnexpectedValueException $e ) {
+			}
 
 			$id_field = $this->Application->getUnitOption('theme', 'IDField');
 			$table_name = $this->Application->getUnitOption('theme', 'TableName');
@@ -510,10 +514,10 @@
 			}*/
 
 			// 2. if none themes found -> delete all from db OR delete all except of found themes
-			$sql = 'SELECT '.$id_field.'
-					FROM '.$table_name;
-			if ($themes_found) {
-				$sql .= ' WHERE '.$id_field.' NOT IN ('.implode(',', $themes_found).')';
+			$sql = 'SELECT ' . $id_field . '
+					FROM ' . $table_name;
+			if ( $themes_found ) {
+				$sql .= ' WHERE ' . $id_field . ' NOT IN (' . implode(',', $themes_found) . ')';
 			}
 			$theme_ids = $this->Conn->GetCol($sql);
 			$this->deleteThemes($theme_ids);