diff --git a/config.php b/config.php
index f4746e2..3624d71 100644
--- a/config.php
+++ b/config.php
@@ -20,15 +20,14 @@ class config
   /** All the parameters allowed with their default value */
   public $default = array ();
   /** Use the .php to protect the informations */
-  public $confFile = "./datas/configuration.php";
+  public $confFile = null;
 
-  /** The constructor can update the confFile variable if it is defined in a
-      constant */
-  public function __construct ()
+  /** Select the configuration file */
+  public function selectConfFile ()
   {
     if (defined("CONFIGFILE"))
       $this->confFile = CONFIGFILE;
-    if (file_exists ("./datas/configuration.php"))
+    elseif (file_exists ("./datas/configuration.php"))
       $this->confFile = "./datas/configuration.php";
     elseif (file_exists ("./data/configuration.php"))
       $this->confFile = "./data/configuration.php";
@@ -37,6 +36,7 @@ class config
   /** List all the parameters configurable in the software */
   public function params ()
   {
+    $this->selectConfFile ();
     return $this->default;
   }
 
@@ -45,6 +45,7 @@ class config
       @param string $param The option name to be returned */
   public function get ($param)
   {
+    $this->selectConfFile ();
     if (!array_key_exists ($param, $this->default))
       throw new Exception ("Unknown parameter '$param'");
     if (!file_exists ($this->confFile))
@@ -76,6 +77,7 @@ class config
       @return TRUE if the parameter is saved or an exception */
   public function set ($param, $value)
   {
+    $this->selectConfFile ();
     if (!array_key_exists ($param, $this->default))
       throw new Exception ("Unknown parameter '$param'");
     if (!file_exists ($this->confFile))
@@ -151,6 +153,150 @@ class config
     return $phpcode;
   }
 
+  private function tokenRead (&$tokens, $output = array ())
+  {
+    $lasttokens = array ();
+    $startDefault = false;
+    $parenthesis = 0;
+    $i = 0;
+    while (count ($tokens) > 0 && $i < 5000)
+    {
+      $i++;
+      $token = array_shift ($tokens);
+      if (is_array ($token))
+      {
+        list($id, $text) = $token;
+        if ($id === T_WHITESPACE) continue;
+        if ($id === T_VARIABLE && $text === '$this')
+        {
+          array_push ($lasttokens, "this");
+          continue;
+        }
+        if (end ($lasttokens) === "this" && $id === T_OBJECT_OPERATOR)
+        {
+          array_push ($lasttokens, "->");
+          continue;
+        }
+        if ($lasttokens === array ("this","->") && $id === T_STRING &&
+            $text === "default")
+        {
+          $startDefault = true;
+          $lasttokens = array ();
+        }
+        if ($startDefault === false)
+          continue;
+        // Here we are in the default array
+
+echo "TEXT=$text<br>\n";
+      }
+      else
+      {
+        if ($startDefault === true)
+        {
+          if ($token === "(")
+            $parenthesis++;
+          if ($token === ")")
+          {
+            $parenthesis--;
+            if ($parenthesis === 0)
+              return $output;
+          }
+        }
+echo "TOK =$token<br>\n";
+      }
+    }
+    if ($i === 5000)
+      throw new Exception ("Too much lines in file (>5000)", 500);
+    return $output;
+  }
+
+  /** Create the HTML form to configure the software where the definitions are
+      done. Allow to edit an existing configuration */
+  public function configHTML ($values=array ())
+  {
+    $debug = 1;
+    if (!defined('T_ML_COMMENT'))
+       define('T_ML_COMMENT', T_COMMENT);
+    else
+       define('T_DOC_COMMENT', T_ML_COMMENT);
+    $source = file_get_contents ("models/model_configuration.php");
+    $tokens = token_get_all ($source);
+    // In debug, display the tokens for analyzis
+    if ($debug)
+    {
+      echo "DEBUG<br/>\n";
+      foreach ($tokens as $token)
+      {
+        if (is_string ($token))
+          echo "STRING : $token<br>\n";
+        else
+        {
+          list($id, $text, $line) = $token;
+          if ($id === 379) continue;
+          echo token_name ($id)."(id $id) $text [line $line]<br>\n";
+        }
+      }
+    }
+
+    
+    return $this->tokenRead ($tokens);
+    
+exit;
+    $params = array ();
+    $string = "";
+    $start = false;
+    foreach ($tokens as $token)
+    {
+      if (is_array ($token))
+      {
+        list($id, $text) = $token;
+        // Look at the $this->default, and skip all before this token
+        if ($id === T_STRING && $text === "default" && $start === false)
+        {
+          // Found the start of the analysis
+          $start = true;
+          continue;
+        }
+        if ($start === false)
+          continue;
+        $string = "";
+        switch ($id)
+        { 
+        case T_COMMENT: 
+        case T_ML_COMMENT: // we've defined this
+        case T_DOC_COMMENT: // and this
+          // Skip the lines which don't contains phpdoc standard
+          if (substr ($text, 0, 3) !== "/**")
+            continue;
+          $definition = trim (substr ($text, 4, -2));
+          echo $definition."<br>\n";
+          break;
+        case T_CONSTANT_ENCAPSED_STRING:
+          $params[$text] = $definition; 
+          break;
+        }
+      }      
+      elseif ($start === true && substr ($string.$token, -2) === ");")
+      {
+        // Skip all the lines after the end of the $this->default definition
+        break;
+      }
+      else
+      {
+        $string .= $token;
+      }
+    }
+print_r ($params);
+exit;
+    $fields = $this->configRead ($this->default);
+
+exit;
+print_r ($fields);
+    $f = new form ();
+    $f->fields ($fields);
+echo     $f->printHTML ();
+  }
+
   /** Return an array of fields */
   private function configRead ($params)
   {