diff --git a/workflow/engine/classes/class.sessions.php b/workflow/engine/classes/class.sessions.php
index 283ea6164..e4912f36b 100755
--- a/workflow/engine/classes/class.sessions.php
+++ b/workflow/engine/classes/class.sessions.php
@@ -1,11 +1,12 @@
 <?php
 /**
  * class.Sessions.php
+ *
  * @package workflow.engine.ProcessMaker
- *  
+ *
  * ProcessMaker Open Source Edition
  * Copyright (C) 2004 - 2011 Colosa Inc.
- * 
+ *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU Affero General Public License as
  * published by the Free Software Foundation, either version 3 of the
@@ -13,247 +14,249 @@
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  * GNU Affero General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- * 
- * For more information, contact Colosa Inc, 2566 Le Jeune Rd., 
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * For more information, contact Colosa Inc, 2566 Le Jeune Rd.,
  * Coral Gables, FL, 33134, USA, or email info@colosa.com.
- * 
+ *
  */
 require_once 'classes/model/Session.php';
+
 /**
  * Sessions - Sessions class
+ *
  * @package workflow.engine.ProcessMaker
  * @author Everth S. Berrios Morales
  * @copyright 2008 COLOSA
  */
 
-class Sessions {
-  
-  protected $tmpfile;
-  private   $sessionId;
-  private   $globals;
-  
-  /** 
-  * This function is the constructor of the Sessions class 
-  * @param string $sSessionId
-  * @return void
-  */
-  public function __construct($sSessionId=NULL){
-    $this->sessionId = $sSessionId;
-  }
-  
-  /** 
-  * This function gets the user session
-  *
-  * 
-  * @name getSessionUser
-  *
-  * @param string sSessionId
-  * @return array
-  */ 
-  public function getSessionUser($sSessionId=NULL) 
-  {
-   try 
-   {           
-    if($sSessionId != NULL){
-      $this->sessionId = $sSessionId;
-    } else if($this->sessionId == NULL){
-      throw new Exception('session id was not set.'); 
-    }
-    
-    $oCriteria = new Criteria('workflow');
-    $oCriteria->addSelectColumn(SessionPeer::USR_UID);      
-    $oCriteria->addSelectColumn(SessionPeer::SES_STATUS); 
-    $oCriteria->addSelectColumn(SessionPeer::SES_DUE_DATE); 
-    $oCriteria->add(SessionPeer::SES_UID,  $this->sessionId);                     
-    
-    $oDataset = SessionPeer::doSelectRS($oCriteria);
-    $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
-    $oDataset->next();
-    $aRow = $oDataset->getRow();
-    
-    if( !is_array($aRow) ){
-      $this->deleteTmpfile();
-    }
-      return $aRow;
-    }
-    catch (Exception $oError) {
-      throw($oError);
-    }
-  }
-  
-  /** 
-  * This function checks the user session
-  *
-  * 
-  * @name verifySession
-  *
-  * @param string sSessionId
-  * @return array
-  */ 
-  public function verifySession($sSessionId=NULL) 
-  {
-   try 
-   {
-     if($sSessionId != NULL){
-       $this->sessionId = $sSessionId;
-     } else if($this->sessionId == NULL){
-       throw new Exception('session id was not set.'); 
-     }
-     
-     $date=date('Y-m-d H:i:s');
-     $oCriteria = new Criteria('workflow');
-     $oCriteria->addSelectColumn(SessionPeer::USR_UID);      
-     $oCriteria->addSelectColumn(SessionPeer::SES_STATUS); 
-     $oCriteria->addSelectColumn(SessionPeer::SES_DUE_DATE); 
-     $oCriteria->add(SessionPeer::SES_UID,  $this->sessionId);                     
-     $oCriteria->add(SessionPeer::SES_STATUS, 'ACTIVE');                     
-     $oCriteria->add(SessionPeer::SES_DUE_DATE,  $date, Criteria::GREATER_EQUAL);                     
-     
-     $oDataset = SessionPeer::doSelectRS($oCriteria);
-     $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
-     $oDataset->next();
-     $aRow = $oDataset->getRow();
+class Sessions
+{
 
-     if( !is_array($aRow) ){
-       $this->deleteTmpfile();
-     }
-     
-     return $aRow;
-   }
-   catch (Exception $oError) {
-     throw($oError);
-   }
-  }
-  
-  /** 
-  * This function registers into globals variables
-  *
-  * 
-  * @name registerGlobal
-  *
-  * @param string $name
-  * @param string $value
-  * @return void
-  */ 
-  public function registerGlobal($name, $value)
-  {
-   $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";  
-   
-   if($this->sessionId == NULL){
-       throw new Exception('session id was not set.'); 
-   }
-   
-   $tmpfile_content = '';
-   if( is_file($this->tmpfile) && trim(file_get_contents($this->tmpfile)) != '' ) {
-     $tmpfile_content = file_get_contents($this->tmpfile);
-   }
-   
-   //getting the global array
-   if( $tmpfile_content != ''){
-     $this->globals = unserialize($tmpfile_content);
-   } else {
-     $this->globals = Array();
-   }
-   
-   //registering the new global variable
-   $this->globals[$name] = $value;
-   
-   //saving the global array
-   $tmpfile_content = serialize($this->globals);
-   file_put_contents($this->tmpfile, $tmpfile_content);
-             
-  }
-  
-  /** 
-  * This function gets a global variable
-  *
-  * 
-  * @name getGlobal
-  *
-  * @param string $name
-  * @return string
-  */
-  public function getGlobal($name)
-  {
-   $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";  
-   
-   if($this->sessionId == NULL){
-       throw new Exception('session id was not set.'); 
-   }
-   
-   $tmpfile_content = '';
-   if( is_file($this->tmpfile) && trim(file_get_contents($this->tmpfile)) != '' ) {
-     $tmpfile_content = file_get_contents($this->tmpfile);
-   }
-   
-   //getting the global array
-   if( $tmpfile_content != ''){
-     $this->globals = unserialize($tmpfile_content);
-   } else {
-     $this->globals = Array();
-   }
-   
-   //getting the new global variable
-   if( isset($this->globals[$name]) ){
-     return $this->globals[$name];
-   } else {
-     return '';
-   } 
-  }
-  
-  /** 
-  * This function gets all globals variables
-  *
-  * 
-  * @name getGlobals
-  *
-  * @param string $name
-  * @return array
-  */
-  public function getGlobals()
-  {
-   $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";  
-   
-   if($this->sessionId == NULL){
-       throw new Exception('session id was not set.'); 
-   }
-   
-   $tmpfile_content = '';
-   if( is_file($this->tmpfile) && trim(file_get_contents($this->tmpfile)) != '' ) {
-     $tmpfile_content = file_get_contents($this->tmpfile);
-   }
-   
-   //getting the global array
-   if( $tmpfile_content != ''){
-     $this->globals = unserialize($tmpfile_content);
-   } else {
-     $this->globals = Array();
-   }
-   return $this->globals;
-  }
-  
-  /** 
-  * This function removes a temporal file
-  *
-  * 
-  * @name deleteTmpfile
-  *
-  * param 
-  * @return void
-  */
-  private function deleteTmpfile(){
-    if($this->sessionId == NULL){
-      throw new Exception('session id was not set.'); 
+    protected $tmpfile;
+    private $sessionId;
+    private $globals;
+
+    /**
+     * This function is the constructor of the Sessions class
+     *
+     * @param string $sSessionId
+     * @return void
+     */
+    public function __construct ($sSessionId = NULL)
+    {
+        $this->sessionId = $sSessionId;
     }
-    $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";
-    @unlink($this->tmpfile);
-  }
-  
+
+    /**
+     * This function gets the user session
+     *
+     *
+     * @name getSessionUser
+     *
+     * @param string sSessionId
+     * @return array
+     */
+    public function getSessionUser ($sSessionId = NULL)
+    {
+        try {
+            if ($sSessionId != NULL) {
+                $this->sessionId = $sSessionId;
+            } else if ($this->sessionId == NULL) {
+                throw new Exception( 'session id was not set.' );
+            }
+
+            $oCriteria = new Criteria( 'workflow' );
+            $oCriteria->addSelectColumn( SessionPeer::USR_UID );
+            $oCriteria->addSelectColumn( SessionPeer::SES_STATUS );
+            $oCriteria->addSelectColumn( SessionPeer::SES_DUE_DATE );
+            $oCriteria->add( SessionPeer::SES_UID, $this->sessionId );
+
+            $oDataset = SessionPeer::doSelectRS( $oCriteria );
+            $oDataset->setFetchmode( ResultSet::FETCHMODE_ASSOC );
+            $oDataset->next();
+            $aRow = $oDataset->getRow();
+
+            if (! is_array( $aRow )) {
+                $this->deleteTmpfile();
+            }
+            return $aRow;
+        } catch (Exception $oError) {
+            throw ($oError);
+        }
+    }
+
+    /**
+     * This function checks the user session
+     *
+     *
+     * @name verifySession
+     *
+     * @param string sSessionId
+     * @return array
+     */
+    public function verifySession ($sSessionId = NULL)
+    {
+        try {
+            if ($sSessionId != NULL) {
+                $this->sessionId = $sSessionId;
+            } else if ($this->sessionId == NULL) {
+                throw new Exception( 'session id was not set.' );
+            }
+
+            $date = date( 'Y-m-d H:i:s' );
+            $oCriteria = new Criteria( 'workflow' );
+            $oCriteria->addSelectColumn( SessionPeer::USR_UID );
+            $oCriteria->addSelectColumn( SessionPeer::SES_STATUS );
+            $oCriteria->addSelectColumn( SessionPeer::SES_DUE_DATE );
+            $oCriteria->add( SessionPeer::SES_UID, $this->sessionId );
+            $oCriteria->add( SessionPeer::SES_STATUS, 'ACTIVE' );
+            $oCriteria->add( SessionPeer::SES_DUE_DATE, $date, Criteria::GREATER_EQUAL );
+
+            $oDataset = SessionPeer::doSelectRS( $oCriteria );
+            $oDataset->setFetchmode( ResultSet::FETCHMODE_ASSOC );
+            $oDataset->next();
+            $aRow = $oDataset->getRow();
+
+            if (! is_array( $aRow )) {
+                $this->deleteTmpfile();
+            }
+
+            return $aRow;
+        } catch (Exception $oError) {
+            throw ($oError);
+        }
+    }
+
+    /**
+     * This function registers into globals variables
+     *
+     *
+     * @name registerGlobal
+     *
+     * @param string $name
+     * @param string $value
+     * @return void
+     */
+    public function registerGlobal ($name, $value)
+    {
+        $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";
+
+        if ($this->sessionId == NULL) {
+            throw new Exception( 'session id was not set.' );
+        }
+
+        $tmpfile_content = '';
+        if (is_file( $this->tmpfile ) && trim( file_get_contents( $this->tmpfile ) ) != '') {
+            $tmpfile_content = file_get_contents( $this->tmpfile );
+        }
+
+        //getting the global array
+        if ($tmpfile_content != '') {
+            $this->globals = unserialize( $tmpfile_content );
+        } else {
+            $this->globals = Array ();
+        }
+
+        //registering the new global variable
+        $this->globals[$name] = $value;
+
+        //saving the global array
+        $tmpfile_content = serialize( $this->globals );
+        file_put_contents( $this->tmpfile, $tmpfile_content );
+
+    }
+
+    /**
+     * This function gets a global variable
+     *
+     *
+     * @name getGlobal
+     *
+     * @param string $name
+     * @return string
+     */
+    public function getGlobal ($name)
+    {
+        $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";
+
+        if ($this->sessionId == NULL) {
+            throw new Exception( 'session id was not set.' );
+        }
+
+        $tmpfile_content = '';
+        if (is_file( $this->tmpfile ) && trim( file_get_contents( $this->tmpfile ) ) != '') {
+            $tmpfile_content = file_get_contents( $this->tmpfile );
+        }
+
+        //getting the global array
+        if ($tmpfile_content != '') {
+            $this->globals = unserialize( $tmpfile_content );
+        } else {
+            $this->globals = Array ();
+        }
+
+        //getting the new global variable
+        if (isset( $this->globals[$name] )) {
+            return $this->globals[$name];
+        } else {
+            return '';
+        }
+    }
+
+    /**
+     * This function gets all globals variables
+     *
+     *
+     * @name getGlobals
+     *
+     * @param string $name
+     * @return array
+     */
+    public function getGlobals ()
+    {
+        $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";
+
+        if ($this->sessionId == NULL) {
+            throw new Exception( 'session id was not set.' );
+        }
+
+        $tmpfile_content = '';
+        if (is_file( $this->tmpfile ) && trim( file_get_contents( $this->tmpfile ) ) != '') {
+            $tmpfile_content = file_get_contents( $this->tmpfile );
+        }
+
+        //getting the global array
+        if ($tmpfile_content != '') {
+            $this->globals = unserialize( $tmpfile_content );
+        } else {
+            $this->globals = Array ();
+        }
+        return $this->globals;
+    }
+
+    /**
+     * This function removes a temporal file
+     *
+     *
+     * @name deleteTmpfile
+     *
+     * param
+     * @return void
+     */
+    private function deleteTmpfile ()
+    {
+        if ($this->sessionId == NULL) {
+            throw new Exception( 'session id was not set.' );
+        }
+        $this->tmpfile = G::sys_get_temp_dir() . PATH_SEP . "pm-rg-{$this->sessionId}";
+        @unlink( $this->tmpfile );
+    }
+
 }