diff --git a/config.php b/class_management.php
similarity index 86%
rename from config.php
rename to class_management.php
index 6e9baed..202d404 100755
--- a/config.php
+++ b/class_management.php
@@ -3,6 +3,7 @@
 /**
  * Manage includes
  * @author franzz
+ * @version 1.0
  */
 class ClassManagement extends PhpObject
 {
@@ -15,7 +16,7 @@ class ClassManagement extends PhpObject
 
 	function __construct($sMainClass)
 	{
-		parent::__construct();
+		parent::__construct(__CLASS__, true);
 		$this->asIncFiles = array();
 		
 		//try to include default files
@@ -61,9 +62,9 @@ class ClassManagement extends PhpObject
 }
 
 /**
- * PhpObject
+ * 
  * @author franzz
- * @version 1.0
+ * @version 1.0a
  */
 class PhpObject
 {
@@ -85,15 +86,27 @@ class PhpObject
 	//Class variables
 	private $asMessageStack;
 	private $iExtractMode;
-	protected $bDebug;
+	private $sChildClass;
+	private $bDebug;
 	
-	function __construct($iExtractMode=self::MODE_FILE)
+	function __construct($sClass='', $bDebug=false, $iExtractMode=self::MODE_FILE)
 	{
 		$this->resetMessageStack();
+		$this->setDebug($bDebug);
 		$this->iExtractMode = $iExtractMode;
-		$this->bDebug = false;
+		$this->sChildClass = $sClass;
+	}
+	
+	public function setDebug($bDebug)
+	{
+		$this->bDebug = $bDebug;
 	}
 
+	public function getDebug()
+	{
+		return $this->bDebug;
+	}
+	
 	private static function getLogPath()
 	{
 		return dirname(__FILE__).'/'.self::LOG_FILENAME;
@@ -140,6 +153,28 @@ class PhpObject
 
 		return $this->glueMessages($asMessages);
 	}
+	
+	protected function cleanMessageStack()
+	{
+		$sErrorStack = $this->getCleanMessageStack($this->getDebug()?self::ALL_TAB:self::ERROR_TAB);
+		if($sErrorStack!='')
+		{
+			switch($this->iExtractMode)
+			{
+				case self::MODE_TEXT:
+					echo $sErrorStack;
+					break;
+				case self::MODE_HTML:
+					echo $sErrorStack;
+					break;
+				case self::MODE_ARRAY:
+					break;
+				case self::MODE_FILE:
+					@file_put_contents(self::getLogPath(), "\n\n".$this->sChildClass.' - '.date('r')."\n".$sErrorStack, FILE_APPEND);
+					break;
+			}
+		}
+	}
 
 	protected function getCleanMessageStacks($aoExtsources, $sType=self::ALL_TAB)
 	{
@@ -202,24 +237,7 @@ class PhpObject
 
 	function __destruct()
 	{
-		$sErrorStack = $this->getCleanMessageStack($this->bDebug?self::ALL_TAB:self::ERROR_TAB);
-		if($sErrorStack!='')
-		{
-			switch($this->iExtractMode)
-			{
-				case self::MODE_TEXT:
-					echo $sErrorStack;
-					break;
-				case self::MODE_HTML:
-					echo $sErrorStack;
-					break;
-				case self::MODE_ARRAY:
-					break;
-				case self::MODE_FILE:
-					@file_put_contents(self::getLogPath(), "\n\n".date('r')."\n".$sErrorStack, FILE_APPEND);
-					break;
-			}
-		}
+		$this->cleanMessageStack();
 	}
 }
 
diff --git a/inc/mysqlmanager.php b/inc/mysqlmanager.php
index d545fb6..bafddb4 100755
--- a/inc/mysqlmanager.php
+++ b/inc/mysqlmanager.php
@@ -13,7 +13,6 @@ class MySqlManager extends PhpObject
 
 	public $sDbState;
 	private $bTrace;
-	private $asOptions;
 	
 	/**
 	 * SQL connection Handle
@@ -21,19 +20,15 @@ class MySqlManager extends PhpObject
 	 */
 	private $oConnection;
 	private $sDatabase;
-
+	private $asOptions;
+	
 	/**
-	 * Constructor MySqlManager
-	 * @param String $sDbServer
-	 * @param String $sLogin
-	 * @param String $sPass
-	 * @param String $sDatabase
-	 * @param Array $asOptions 
-	 * 	array(	'tables'=>array('table_name1'=>array('table_field1', 'table_field2', ...), 'table_name2'=>array(...)), 
+	 * Tables & fields descriptions
+	 * array(	'tables'=>array('table_name1'=>array('table_field1', 'table_field2', ...), 'table_name2'=>array(...)),
 	 * 			'types'=>array('field1'=>'field_type1', 'field2'=>'field_type2', ...)
 	 * 			'constraints'=>array('table_name1'=>'table_contraint1', 'table_name2'=>'table_contraint2', ...),
 	 * 			'cascading_delete'=>array('table_name1'=>array('linked_table1', 'linked_table2', ...), 'table_name2'=>...))
-	 * @param string $sEncoding
+	 * @var Array
 	 */
 	public function __construct($sDbServer, $sLogin, $sPass, $sDatabase, $asOptions, $sEncoding='utf8mb4')
 	{
@@ -51,16 +46,13 @@ class MySqlManager extends PhpObject
 		*/
 
 		$this->setTrace(false);
-		//if(!$this->oConnection)
 		if($this->oConnection->connect_error)
 		{
-			//$this->addError('bug connection');
 			$this->addError('bug connection : '.$this->oConnection->connect_error);
 			$this->sDbState = self::DB_NO_CONN;
 		}
 		else
 		{
-			//if(!mysql_select_db($this->sDatabase, $this->oConnection))
 			if(!$this->oConnection->select_db($this->sDatabase))
 			{
 				$this->addError('bug selecting database. Installing...');
@@ -88,31 +80,22 @@ class MySqlManager extends PhpObject
 	public function __destruct()
 	{
 		parent::__destruct();
-		//mysql_close($this->oConnection);
 		$this->oConnection->close();
 	}
 
-	public function setTrace($bAction)
+	public function setTrace($bTrace)
 	{
-		$this->bTrace = $bAction;
+		$this->bTrace = $bTrace;
+		if($bTrace) $this->setDebug(true);
+	}
+	
+	public function getTrace()
+	{
+		return $this->bTrace;
 	}
 
 	public function getTables()
 	{
-		/*
-		$oReflect = new ReflectionClass(__CLASS__);
-		$asConstants = $oReflect->getConstants();
-		$sTableTag = '_TABLE';
-		$asTables = array();
-		foreach($asConstants as $sConstant=>$sConstantValue)
-		{
-			if(mb_strpos($sConstant, $sTableTag)!==false && mb_strpos($sConstant, $sTableTag)==(mb_strlen($sConstant) - mb_strlen($sTableTag)))
-			{
-				$asTables[] = $sConstantValue;
-			}
-		}
-		return $asTables;
-		*/
 		return array_keys($this->asOptions['tables']);
 	}
 
@@ -121,7 +104,6 @@ class MySqlManager extends PhpObject
 		//Create Database
 		$this->setQuery("DROP DATABASE IF EXISTS ".$this->sDatabase);
 		$this->setQuery("CREATE DATABASE ".$this->sDatabase." DEFAULT CHARACTER SET ".Settings::DB_ENC." DEFAULT COLLATE ".Settings::DB_ENC."_general_ci");
-		//mysql_select_db($this->sDatabase, $this->oConnection);
 		$this->oConnection->select_db($this->sDatabase);
 
 		//Create tables
@@ -171,31 +153,25 @@ class MySqlManager extends PhpObject
 	private function setQuery($sQuery, $sTypeQuery=__FUNCTION__)
 	{
 		$this->getQuery($sQuery, $sTypeQuery);
-		//return (mysql_affected_rows()!=0);
 		return ($this->oConnection->affected_rows!=0);
 	}
 
 	private function getQuery($sQuery, $sTypeQuery=__FUNCTION__)
 	{
 		$sQuery = str_replace(array("\n", "\t"), array(" ", ""), $sQuery);
-		//$oResult = mysql_query($sQuery, $this->oConnection);
 
-		if($this->bTrace)
-		{
-			$this->setDebug(true);
-			$this->addNotice($sQuery);
-		}
+		if($this->getTrace()) $this->addNotice($sQuery);
 
 		if(!($oResult = $this->oConnection->query($sQuery)))
 		{
-			$this->addError("\nErreur SQL : \n".str_replace("\t", "", $sQuery)."\n\n".str_replace(array("\t", "\n"), "", $this->oConnection->error));
+			$this->addError("\nErreur SQL : \n".str_replace("\t", "", $sQuery)."\n\n".str_replace(array("\t", "\n"), "", $this->getLastError()));
 		}
 		return $oResult;
 	}
 	
 	public function getLastError()
 	{
-		
+		return  $this->oConnection->error;
 	}
 
 	public function getArrayQuery($sQuery, $bStringOnly=false, $sGroupBy='', $sTypeQuery=__FUNCTION__)
@@ -206,7 +182,6 @@ class MySqlManager extends PhpObject
 		$oResult = $this->getQuery($sQuery, true, $sTypeQuery);
 		if($oResult!==false)
 		{
-			//while($asCurrentRow = mysql_fetch_array($oResult))
 			while($asCurrentRow = $oResult->fetch_array())
 			{
 				if($bStringOnly) $asCurrentRow = $this->arrayKeyFilter($asCurrentRow, 'is_string');
@@ -444,7 +419,24 @@ class MySqlManager extends PhpObject
 			$this->setQuery("DELETE FROM ".$sTable." WHERE ".$this->getId($sTableName)." = ".$iTableId);
 		}
 	}
-
+	
+	public function emptyTable($sTableName)
+	{
+		$this->cleanSql($sTableName);
+		return $this->setQuery("TRUNCATE ".$sTableName);
+	}
+	
+	public function selectList($sTableName, $sColumnName='', $asConstraints=array())
+	{
+		$sColumnName = $sColumnName==''?self::getText($sTableName):$sColumnName;
+		$sIdColumnName = self::getId($sTableName);
+		return $this->selectRows(	array(	'select'	=> array($sIdColumnName, $sColumnName),
+											'from'		=> $sTableName,
+											'constraint'=> $asConstraints),
+									true,
+									$sIdColumnName);
+	}
+	
 	public function selectRows($asInfo, $bStringOnly=true, $sGroupBy='')
 	{
 		$asAttributes = array('select'=>"SELECT", 'from'=>"FROM", 'join'=>"LEFT JOIN", 'joinOn'=>"LEFT JOIN", 'constraint'=>"WHERE", 'groupBy'=>"GROUP BY", 'orderBy'=>"ORDER BY", 'limit'=>'LIMIT');
@@ -452,7 +444,6 @@ class MySqlManager extends PhpObject
 		$asOperators = array('constraint'=>" = ", 'orderBy'=>" ", 'join'=>" USING(", 'joinOn'=>" ON ");
 		$asEndOfStatement = array('constraint'=>"", 'orderBy'=>"", 'join'=>")", 'joinOn'=>"");
 
-		//$sQuery = "/* ".str_replace(array("\n", "\t"), '', print_r($asInfo, true))." */";
 		$sQuery = "";
 		foreach($asAttributes as $sStatement => $sKeyWord)
 		{
@@ -482,6 +473,15 @@ class MySqlManager extends PhpObject
 					{
 						$asOperators[$sStatement] = $asInfo['constOpe'];
 					}
+					elseif($sStatement=='joinOn')
+					{
+						$asSimplifiedSelection = array();
+						foreach($asSelection as $sTable => $asJoinFields)
+						{
+							$asSimplifiedSelection[$sTable] = $this->implodeAll($asJoinFields, " = ", " AND ", $sTable.".", ".[/KEY\]");
+						}
+						$asSelection = $asSimplifiedSelection;
+					}
 					$sQuery .= $this->implodeAll($asSelection, $asOperators[$sStatement], $asRowSeparators[$sStatement], "", $asEndOfStatement[$sStatement]);
 				}
 				else
@@ -500,7 +500,7 @@ class MySqlManager extends PhpObject
 
 	private function addColumnSelectors(&$asSelection)
 	{
-		//TODO get rid of this
+		//FIXME get rid of this
 		$sSqlWord = 'option';
 		$sKey = array_search($sSqlWord, $asSelection);
 		if($sKey!==false)
@@ -516,21 +516,22 @@ class MySqlManager extends PhpObject
 
 	public function selectRow($sTableName, $asConstraints=array(), $sColumnName='*')
 	{
-		if(!is_array($asConstraints))
-		{
-			$asConstraints = array($this->getId($sTableName)=>$asConstraints);
-		}
-		$asResult = $this->selectRows(array('select'=>$sColumnName, 'from'=>$sTableName, 'constraint'=>$asConstraints));
-		$iCountNb = count($asResult);
+		//Table ID directly
+		if(!is_array($asConstraints)) $asConstraints = array($this->getId($sTableName)=>$asConstraints);
+		
+		$asRows = $this->selectRows(array('select'=>$sColumnName, 'from'=>$sTableName, 'constraint'=>$asConstraints));
+		$iCountNb = count($asRows);
 		switch($iCountNb)
 		{
 			case 0 :
-				return false;
+				$asResult = array();
+				break;
 			case $iCountNb > 1 :
 				$this->addError('Trop de résultats pour un selectRow() : '.$iCountNb.' lignes. Table: '.$sTableName.', contrainte: '.self::implodeAll($asConstraints, '=', ' ').', colonne: '.$sColumnName);
-				break;
+			default:
+				$asResult = array_shift($asRows);
 		}
-		return array_shift($asResult);
+		return $asResult;
 	}
 
 	public function selectValue($sTableName, $sColumnName, $oConstraints=array())
@@ -539,7 +540,8 @@ class MySqlManager extends PhpObject
 		{
 			$oConstraints = array($this->getId($sTableName)=>$oConstraints);
 		}
-		return $this->selectRow($sTableName, $oConstraints, $sColumnName);
+		$oResult = $this->selectRow($sTableName, $oConstraints, $sColumnName);
+		return empty($oResult)?false:$oResult;
 	}
 
 	public function pingValue($sTableName, $oConstraints)
@@ -549,12 +551,11 @@ class MySqlManager extends PhpObject
 
 	public function cleanSql(&$oData)
 	{
-		//self::cleanData($oData, 'mysql_real_escape_string');
-		//$oData = self::cleanData($oData, 'mysql_real_escape_string');
 		$this->cleanData($oData);
 		$oData = $this->cleanData($oData);
 	}
 
+	//TODO déplacer dans ToolBox::implodeAll
 	public static function implodeAll($asText, $asKeyValueSeparator='',  $sRowSeparator='', $sKeyPre='', $sValuePost=false)
 	{
 		if($sValuePost===false)
@@ -569,9 +570,14 @@ class MySqlManager extends PhpObject
 			$asKeyValueSeparator = array_combine(array_keys($asText), array_fill(0, count($asText), $asKeyValueSeparator));
 		}
 
+		$asFrom = array('[/KEY\]', '[/VALUE\]');
 		foreach($asText as $sKey=>$sValue)
 		{
-			$asCombinedText[] = $sKeyPre.$sKey.$asKeyValueSeparator[$sKey].(is_array($sValue)?implode($sValue):$sValue).$sValuePost;
+			$asTo = array($sKey, $sValue);
+			$sRepKeyPre = str_replace($asFrom, $asTo, $sKeyPre);
+			$asRepKeyValueSeparator = str_replace($asFrom, $asTo, $asKeyValueSeparator[$sKey]);
+			$sRepValuePost = str_replace($asFrom, $asTo, $sValuePost);
+			$asCombinedText[] = $sRepKeyPre.$sKey.$asRepKeyValueSeparator.(is_array($sValue)?implode($sValue):$sValue).$sRepValuePost;
 		}
 		return implode($sRowSeparator, $asCombinedText);
 	}
diff --git a/index.php b/index.php
index 4a27889..22d873f 100755
--- a/index.php
+++ b/index.php
@@ -4,7 +4,7 @@
 
 //Start buffering
 ob_start();
-require_once 'config.php';
+require_once 'class_management.php';
 $oClassManagement = new ClassManagement('main');
 ToolBox::cleanPost($_POST);
 ToolBox::cleanPost($_GET);
diff --git a/standalone/build_random_pic_file.php b/standalone/build_random_pic_file.php
new file mode 100755
index 0000000..375459a
--- /dev/null
+++ b/standalone/build_random_pic_file.php
@@ -0,0 +1,20 @@
+<?php
+
+$sOutFilePath = 'logo_givaudan_48.php';
+
+$asResult[] = '<?php';
+$asResult[] = '';
+foreach (glob("resize/*_48.png") as $sFileName)
+{
+    $sImageString = base64_encode(file_get_contents($sFileName));
+    $asImages[] = '\''.str_replace("'", "\'", $sImageString).'\'';
+}
+$asResult[] = '$asImages = array('."\t".implode(', '."\n\t\t\t\t\t", $asImages).');';
+$asResult[] = '';
+$asResult[] = 'header(\'Content-Type: image/png\');';
+$asResult[] = 'echo base64_decode($asImages[rand(0, count($asImages)-1)]);';
+$asResult[] = "\n\n".'?>';
+
+file_put_contents($sOutFilePath, implode("\n", $asResult));
+chmod($sOutFilePath, 0777);
+?>
\ No newline at end of file