diff --git a/main/admin/session_add.php b/main/admin/session_add.php
index 19f7089ef4..44e019aec5 100755
--- a/main/admin/session_add.php
+++ b/main/admin/session_add.php
@@ -294,12 +294,12 @@ $form->addElement('advanced_settings','<a class="btn-show" id="advanced_paramete
 
 $form->addElement('html','<div id="options" style="display:none">');
 
-$form->addElement('text', 'nb_days_acess_before', get_lang('DaysBefore'), array(
+$form->addElement('text', 'nb_days_acess_before', array('', '', get_lang('DaysBefore')), array(
     'style' => 'width: 30px;',
     'value' => $nb_days_acess_before
 ));
 
-$form->addElement('text', 'nb_days_acess_after', get_lang('DaysAfter'), array(
+$form->addElement('text', 'nb_days_acess_after', array('', '', get_lang('DaysAfter')), array(
     'style' => 'width: 30px;',
     'value' => $nb_days_acess_after
 ));
diff --git a/main/admin/session_edit.php b/main/admin/session_edit.php
index e3e2b7e33a..03c5e545bf 100755
--- a/main/admin/session_edit.php
+++ b/main/admin/session_edit.php
@@ -155,11 +155,11 @@ if ($infos['nb_days_access_before_beginning'] != 0 || $infos['nb_days_access_aft
     $form->addElement('html','<div id="options" style="display:none;">');
 }
 
-$form->addElement('text', 'nb_days_access_before', get_lang('DaysBefore'), array(
+$form->addElement('text', 'nb_days_access_before', arra('', '', get_lang('DaysBefore')), array(
     'style' => 'width: 30px;'
 ));
 
-$form->addElement('text', 'nb_days_access_after', get_lang('DaysAfter'), array(
+$form->addElement('text', 'nb_days_access_after', array('', '', get_lang('DaysAfter')), array(
     'style' => 'width: 30px;'
 ));
 
diff --git a/main/inc/lib/extra_field.lib.php b/main/inc/lib/extra_field.lib.php
index 0661c08a7e..4ffea93e0b 100755
--- a/main/inc/lib/extra_field.lib.php
+++ b/main/inc/lib/extra_field.lib.php
@@ -52,6 +52,8 @@ class ExtraField extends Model
     const FIELD_TYPE_SOCIAL_PROFILE  = 12;
     const FIELD_TYPE_CHECKBOX        = 13;
     const FIELD_TYPE_MOBILE_PHONE_NUMBER       = 14;
+    const FIELD_TYPE_INTEGER        = 15;
+    const FIELD_TYPE_FILE        = 16;
 
     public $type = 'user'; //or session or course
     public $handler_id = 'user_id';
@@ -228,6 +230,9 @@ class ExtraField extends Model
         $types[self::FIELD_TYPE_TIMEZONE]        = get_lang('FieldTypeTimezone');
         $types[self::FIELD_TYPE_SOCIAL_PROFILE]  = get_lang('FieldTypeSocialProfile');
         $types[self::FIELD_TYPE_MOBILE_PHONE_NUMBER] = get_lang('FieldTypeMobilePhoneNumber');
+        $types[self::FIELD_TYPE_CHECKBOX]       = get_lang('FieldTypeCheckbox');
+        $types[self::FIELD_TYPE_INTEGER]           = get_lang('FieldTypeInteger');
+        $types[self::FIELD_TYPE_FILE]           = get_lang('FieldTypeFile');
 
         switch ($handler) {
             case 'course':
@@ -988,6 +993,44 @@ EOF;
                             $form->freeze('extra_'.$field_details['field_variable']);
                         }
                         break;
+                    case ExtraField::FIELD_TYPE_INTEGER:
+                        $form->addElement(
+                            'number',
+                            'extra_'.$field_details['field_variable'],
+                            $field_details['field_display_text'],
+                            array('class' => 'span1')
+                        );
+
+                        $form->applyFilter('extra_'.$field_details['field_variable'], 'stripslashes');
+                        $form->applyFilter('extra_'.$field_details['field_variable'], 'trim');
+
+                        if (!$admin_permissions) {
+                            if ($field_details['field_visible'] == 0) {
+                                $form->freeze(
+                                    'extra_'.$field_details['field_variable']
+                                );
+                            }
+                        }
+                        break;
+                    case ExtraField::FIELD_TYPE_FILE:
+                        $form->addElement(
+                            'file',
+                            'extra_'.$field_details['field_variable'],
+                            $field_details['field_display_text'],
+                            array('class' => 'span8')
+                        );
+
+                        $form->applyFilter('extra_'.$field_details['field_variable'], 'stripslashes');
+                        $form->applyFilter('extra_'.$field_details['field_variable'], 'trim');
+
+                        if (!$admin_permissions) {
+                            if ($field_details['field_visible'] == 0) {
+                                $form->freeze(
+                                    'extra_'.$field_details['field_variable']
+                                );
+                            }
+                        }
+                        break;
                 }
             }
         }
diff --git a/main/inc/lib/formvalidator/Element/Number.class.php b/main/inc/lib/formvalidator/Element/Number.class.php
new file mode 100644
index 0000000000..9349b00372
--- /dev/null
+++ b/main/inc/lib/formvalidator/Element/Number.class.php
@@ -0,0 +1,30 @@
+<?php
+/* For licensing terms, see /license.txt */
+
+require_once 'HTML/QuickForm/text.php';
+
+/**
+ * Form element to select a date and hour (with popup datepicker)
+ *
+ * Class DatePicker
+ */
+class Number extends HTML_QuickForm_text
+{
+    /**
+     * @param string $elementName
+     * @param string $elementLabel
+     * @param array  $attributes
+     */
+    public function Number($elementName = null, $elementLabel = null, $attributes = null)
+    {
+        if (!isset($attributes['id'])) {
+            $attributes['id'] = $elementName;
+        }
+        
+        $attributes['type'] = 'number';
+
+        HTML_QuickForm_element::HTML_QuickForm_element($elementName, $elementLabel, $attributes);
+        $this->_appendName = true;
+        $this->_type = 'number';
+    }
+}
diff --git a/main/inc/lib/formvalidator/FormValidator.class.php b/main/inc/lib/formvalidator/FormValidator.class.php
index 185fc64a75..830fac03ab 100755
--- a/main/inc/lib/formvalidator/FormValidator.class.php
+++ b/main/inc/lib/formvalidator/FormValidator.class.php
@@ -140,6 +140,7 @@ class FormValidator extends HTML_QuickForm
         $this->registerElementType('button', $dir . 'Element/style_submit_button.php', 'HTML_QuickForm_stylesubmitbutton');
         $this->registerElementType('captcha', 'HTML/QuickForm/CAPTCHA.php', 'HTML_QuickForm_CAPTCHA');
         $this->registerElementType('CAPTCHA_Image', 'HTML/QuickForm/CAPTCHA/Image.php', 'HTML_QuickForm_CAPTCHA_Image');
+        $this->registerElementType('number', $dir . 'Element/Number.class.php', 'Number');
 
         $this->registerRule('date', null, 'HTML_QuickForm_Rule_Date', $dir . 'Rule/Date.php');
         $this->registerRule('datetime', null, 'DateTimeRule', $dir . 'Rule/DateTimeRule.php');
diff --git a/tests/scripts/insert_session_fields.php b/tests/scripts/insert_session_fields.php
index bc6a2d2577..98ce71779d 100644
--- a/tests/scripts/insert_session_fields.php
+++ b/tests/scripts/insert_session_fields.php
@@ -11,7 +11,7 @@ api_protect_admin_script();
 
 $horasLectivas = new ExtraField('session');
 $horasLectivas->save(array(
-    'field_type' => ExtraField::FIELD_TYPE_TEXT,
+    'field_type' => ExtraField::FIELD_TYPE_INTEGER,
     'field_variable' => 'horas_lectivas',
     'field_display_text' => 'Horas lectivas',
     'field_visible' => 1,
@@ -20,7 +20,7 @@ $horasLectivas->save(array(
 
 $costo = new ExtraField('session');
 $costo->save(array(
-    'field_type' => ExtraField::FIELD_TYPE_TEXT,
+    'field_type' => ExtraField::FIELD_TYPE_INTEGER,
     'field_variable' => 'costo',
     'field_display_text' => 'Costo',
     'field_visible' => 1,
@@ -29,7 +29,7 @@ $costo->save(array(
 
 $vacantes = new ExtraField('session');
 $vacantes->save(array(
-    'field_type' => ExtraField::FIELD_TYPE_TEXT,
+    'field_type' => ExtraField::FIELD_TYPE_INTEGER,
     'field_variable' => 'vacantes',
     'field_display_text' => 'Vacantes',
     'field_visible' => 1,
@@ -38,7 +38,7 @@ $vacantes->save(array(
 
 $numeroRecomendadoParticipantes = new ExtraField('session');
 $numeroRecomendadoParticipantes->save(array(
-    'field_type' => ExtraField::FIELD_TYPE_TEXT,
+    'field_type' => ExtraField::FIELD_TYPE_INTEGER,
     'field_variable' => 'numero_recomendado_participantes',
     'field_display_text' => 'Número recomendado de participantes',
     'field_visible' => 1,
@@ -102,7 +102,7 @@ $esSesionAbierta->save(array(
 
 $duracion = new ExtraField('session');
 $duracion->save(array(
-    'field_type' => ExtraField::FIELD_TYPE_TEXT,
+    'field_type' => ExtraField::FIELD_TYPE_INTEGER,
     'field_variable' => 'duracion',
     'field_display_text' => 'Duración',
     'field_visible' => 1,
@@ -139,9 +139,9 @@ $finPublicacion->save(array(
 
 $banner = new ExtraField('session');
 $banner->save(array(
-    'field_type' => ExtraField::FIELD_TYPE_TEXT,
-    'field_variable' => 'fin_publicacion',
-    'field_display_text' => 'Fin de publicación',
+    'field_type' => ExtraField::FIELD_TYPE_FILE,
+    'field_variable' => 'banner',
+    'field_display_text' => 'Banner de la sesión',
     'field_visible' => 1,
     'field_changeable' => 1
 ));