diff --git a/main/attendance/index.php b/main/attendance/index.php
index 49c2f643ee..b7f5c734ee 100644
--- a/main/attendance/index.php
+++ b/main/attendance/index.php
@@ -1,29 +1,163 @@
 <?php
-
-/* For licensing terms, see /dokeos_license.txt */
+/* For licensing terms, see /license.txt */
 
 /**
- * @package dokeos.glossary
- * @author Christian Fasanando, initial version
- * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University, Belgium, refactoring and tighter integration in Dokeos
- */
+* Template (front controller in MVC pattern) used for distpaching to the controllers depend on the current action  
+* @author Christian Fasanando <christian1827@gmail.com>
+* @author Carlos Vargas (link to attendance tool )<litox84@gmail.com> 
+* @package chamilo.attendance
+*/
 
 // name of the language file that needs to be included
-$language_file = array('userInfo');
+$language_file = array ('userInfo');
 
-// including the global dokeos file
+// including files 
 require_once '../inc/global.inc.php';
+require_once api_get_path(LIBRARY_PATH).'attendance.lib.php';
+require_once api_get_path(LIBRARY_PATH).'app_view.php';
+require_once 'attendance_controller.php';
+require_once api_get_path(LIBRARY_PATH).'usermanager.lib.php';
+require_once api_get_path(LIBRARY_PATH).'course.lib.php';
+require_once api_get_path(LIBRARY_PATH).'sortabletable.class.php';
+require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
+require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/gradebook_functions.inc.php';
+
+
+// current section
+$this_section = SECTION_COURSES;
+
+// protect a course script
+api_protect_course_script(true);
+
+// defining constants and variables
+$calendar_id = '';
+if (isset($_GET['calendar_id'])) {
+	$calendar_id = intval($_GET['calendar_id']);
+}
+
+// get actions
+$actions = array('attendance_list', 'attendance_sheet_list', 'attendance_sheet_add', 'attendance_add', 'attendance_edit', 'attendance_delete', 'attendance_delete_select');
+$actions_calendar = array('calendar_list', 'calendar_add', 'calendar_edit', 'calendar_delete', 'calendar_all_delete');
+$action  = 'attendance_list';
+if (isset($_GET['action']) && (in_array($_GET['action'],$actions) || in_array($_GET['action'],$actions_calendar))) {
+	$action = $_GET['action'];
+}
+
+// get attendance id
+$attendance_id = 0;
+if (isset($_GET['attendance_id'])) {
+	$attendance_id = intval($_GET['attendance_id']);
+}
+
+// instance object attendance for using like library here
+$attendance = new Attendance();
+
+// attendance controller object
+$attendance_controller = new AttendanceController();
+
+if (!empty($attendance_id)) {
+	// attendance data by id
+	$attendance_data = $attendance->get_attendance_by_id($attendance_id);
+}
+
+$htmlHeadXtra[] = '<script src="'.api_get_path(WEB_LIBRARY_PATH).'javascript/jquery.js" type="text/javascript" language="javascript"></script>';
+$htmlHeadXtra[] = '<script src="'.api_get_path(WEB_LIBRARY_PATH).'javascript/thickbox.js" type="text/javascript" language="javascript"></script>';
+$htmlHeadXtra[] = '<link rel="stylesheet" href="'.api_get_path(WEB_LIBRARY_PATH).'javascript/thickbox.css" type="text/css" media="projection, screen">';
+$htmlHeadXtra[] = '<script language="javascript">
+		
+			$(function() {	
+				$("table th input:checkbox").click(function() {
+					var col_id = this.id;
+					var col_split = col_id.split("_");							
+					var calendar_id = col_split[2];
+					if ($("#"+col_id).is(":checked")) {
+						$(".checkboxes_col_"+calendar_id).css({"background-color":"#e1e1e1"});
+						$(".checkboxes_col_"+calendar_id+" input:checkbox").attr("disabled",false);
+					} else {
+						$(".row_odd td.checkboxes_col_"+calendar_id).css({"background-color":"#F2F2F2"});
+						$(".row_even td.checkboxes_col_"+calendar_id).css({"background-color":"#FFF"});
+						$(".checkboxes_col_"+calendar_id+" input:checkbox").attr("disabled",true);
+					}
+				});
+					
+				$(".attendance-sheet-content .row_odd, .attendance-sheet-content .row_even").mouseover(function() {
+					$(".row_odd").css({"background-color":"#F2F2F2"});
+					$(".row_even").css({"background-color":"#FFF"});
+				});	
+				$(".attendance-sheet-content .row_odd, .attendance-sheet-content .row_even").mouseout(function() {
+					$(".row_odd").css({"background-color":"#F2F2F2"});
+					$(".row_even").css({"background-color":"#FFF"});
+				});
+											
+				$(".advanced_parameters").click(function() {				
+					if ($("#id_qualify").css("display") == "none") {
+						$("#id_qualify").css("display","block");
+						$("#img_plus_and_minus").html(\'&nbsp;'.Display::return_icon('div_hide.gif',get_lang('Hide'),array('style'=>'vertical-align:middle')).'&nbsp;'.get_lang('AdvancedParameters').'\');
+					} else {
+						$("#id_qualify").css("display","none");
+						$("#img_plus_and_minus").html(\'&nbsp;'.Display::return_icon('div_show.gif',get_lang('Show'),array('style'=>'vertical-align:middle')).'&nbsp;'.get_lang('AdvancedParameters').'\');
+					}	
+				});																				
+			});		
+
+		</script>';
 
-// setting the tool constants
-$tool = TOOL_ATTENDANCE;
-// displaying the header
-Display::display_header(get_lang(ucfirst($tool)));
-// Tool introduction
-Display::display_introduction_section(TOOL_NOTEBOOK);
 
+// interbreadcrumbs
+if (!empty($_GET['gradebook']) && $_GET['gradebook']=='view' ) {
+	$_SESSION['gradebook']=Security::remove_XSS($_GET['gradebook']);
+	$gradebook=	$_SESSION['gradebook'];
+} elseif (empty($_GET['gradebook'])) {
+	unset($_SESSION['gradebook']);
+	$gradebook=	'';
+}
 
+$param_gradebook = '';
+if (isset($_SESSION['gradebook'])) {
+	$param_gradebook = '&gradebook='.$gradebook;
+}
+if (!empty($gradebook)) {
+	$interbreadcrumb[] = array ('url' => '/main/gradebook/index.php', 'name' => get_lang('Gradebook'));	
+}
+$interbreadcrumb[] = array ('url' => 'index.php?action=attendance_list'.$param_gradebook, 'name' => get_lang('Attendance'));
+if($action == 'attendance_add') $interbreadcrumb[] = array ('url' => '#', 'name' => get_lang('CreateANewAttendance'));
+if($action == 'attendance_edit') $interbreadcrumb[] = array ('url' => '#', 'name' => get_lang('Edit'));
+if($action == 'attendance_sheet_list' || $action == 'attendance_sheet_add') $interbreadcrumb[] = array ('url' => '#', 'name' => $attendance_data['name']);
+if($action == 'calendar_list' || $action == 'calendar_edit' || $action == 'calendar_delete' || $action == 'calendar_all_delete') {
+	$interbreadcrumb[] = array ('url' => 'index?'.api_get_cidreq().'&action=attendance_sheet_list&attendance_id='.$attendance_id.$param_gradebook, 'name' => $attendance_data['name']);
+	$interbreadcrumb[] = array ('url' => '#', 'name' => get_lang('AttendanceCalendar'));	
+}
+if($action == 'calendar_add') {
+	$interbreadcrumb[] = array ('url' => 'index?'.api_get_cidreq().'&action=attendance_sheet_list&attendance_id='.$attendance_id.$param_gradebook, 'name' => $attendance_data['name']);
+	$interbreadcrumb[] = array ('url' => '#', 'name' => get_lang('AddDateAndTime'));	
+}
 
+// delete selected attendance
+if (isset($_POST['action']) && $_POST['action'] == 'attendance_delete_select') {
+	$attendance_controller->attendance_delete($_POST['id']);
+}
 
+// distpacher actions to controller
+switch ($action) {	
+	case 'attendance_list'			:	$attendance_controller->attendance_list();
+										break;
+	case 'attendance_add'			:	$attendance_controller->attendance_add();
+										break;
+	case 'attendance_edit'			:	$attendance_controller->attendance_edit($attendance_id);
+										break;
+	case 'attendance_delete'		:	$attendance_controller->attendance_delete($attendance_id);
+										break;									
+	case 'attendance_sheet_list'	:	$attendance_controller->attendance_sheet($action, $attendance_id);
+										break;
+	case 'attendance_sheet_add' 	:	$attendance_controller->attendance_sheet($action, $attendance_id);
+										break;	
+	case 'calendar_list' 			:	
+	case 'calendar_add'  			:
+	case 'calendar_edit' 			:
+	case 'calendar_all_delete' 		:
+	case 'calendar_delete' 			:	$attendance_controller->attendance_calendar($action, $attendance_id, $calendar_id);
+										break;
+	default		  					:	$attendance_controller->attendance_list();
+}
 
-// footer
-Display :: display_footer();
\ No newline at end of file
+?>
\ No newline at end of file