diff --git a/inc/main.php b/inc/main.php
index 8daaaa9..4e59d3f 100755
--- a/inc/main.php
+++ b/inc/main.php
@@ -15,6 +15,9 @@ abstract class Main extends PhpObject
 	const NO_DATA = 'No Data';
 	//...
 	
+	const ACTIVE = 1;
+	const INACTIVE = 0;
+	
 	//Folders
 	const MASKS_FOLDER = 'masks/';
 	
diff --git a/inc/mysqlmanager.php b/inc/mysqlmanager.php
index bf28c1f..7ea1d48 100755
--- a/inc/mysqlmanager.php
+++ b/inc/mysqlmanager.php
@@ -350,20 +350,15 @@ class MySqlManager extends PhpObject
 		$this->addColumnSelectors($asConstraintsValues);
 
 		$sLimit = $iLimit>0?" LIMIT $iLimit":"";
-		$sQuery = 	"UPDATE {$sTableName} ".
-				"SET ".$this->implodeAll($asQueryValues, " = ", ", ")." ".
-				"WHERE ".$this->implodeAll($asConstraintsValues, " = ", " AND ").$sLimit;
+		$sQuery =	"UPDATE {$sTableName} ".
+					"SET ".$this->implodeAll($asQueryValues, " = ", ", ")." ".
+					"WHERE ".$this->implodeAll($asConstraintsValues, " = ", " AND ").$sLimit;
 
 		$iResult = false;
-		if($this->setQuery($sQuery))
-		{
-			$this->setTrace(true);
-			if($iLimit==1)
-			{
-				$iResult = array_key_exists($sTableIdCol, $asConstraints)?$asConstraints[$sTableIdCol]:$this->selectValue($sTableName, $sTableIdCol, $asConstraints);
-			}
-			else $iResult = true;
-		}
+		if($this->setQuery($sQuery) && $iLimit!=1) $iResult = true;
+		else $iResult = array_key_exists($sTableIdCol, $asConstraints)?$asConstraints[$sTableIdCol]:$this->selectValue($sTableName, $sTableIdCol, $asConstraints);
+		
+		$this->addError($iResult);
 		return $iResult;
 	}
 
diff --git a/inc/toolbox.php b/inc/toolbox.php
index 1e7fab2..8dc541c 100755
--- a/inc/toolbox.php
+++ b/inc/toolbox.php
@@ -380,7 +380,7 @@ class ToolBox
 	 * @param String $string
 	 * @return String
 	 */
-	public function remove_accents($string)
+	public static function remove_accents($string)
 	{
 		if(!preg_match('/[\x80-\xff]/', $string)) return $string;