diff --git a/main/coursecopy/backup.php b/main/coursecopy/backup.php
index 1cd67199c1..757f6b8a9d 100755
--- a/main/coursecopy/backup.php
+++ b/main/coursecopy/backup.php
@@ -1,5 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
+
 /**
  * Create a backup.
  *
@@ -7,22 +8,22 @@
  * @package chamilo.backup
  */
 
-// name of the language file that needs to be included
+// Language files that need to be included
 $language_file = array('exercice', 'coursebackup', 'admin');
 
-// including the global file
-include ('../inc/global.inc.php');
+// Including the global initialization file
+require '../inc/global.inc.php';
 
 // Check access rights (only teachers allowed)
-if (!api_is_allowed_to_edit())
-{
+if (!api_is_allowed_to_edit()) {
 	api_not_allowed(true);
 }
-// section for the tabs
-$this_section=SECTION_COURSES;
 
-// breadcrumbs
-$interbreadcrumb[] = array ("url" => "../course_info/maintenance.php", "name" => get_lang('Maintenance'));
+// Section for the tabs
+$this_section = SECTION_COURSES;
+
+// Breadcrumbs
+$interbreadcrumb[] = array('url' => '../course_info/maintenance.php', 'name' => get_lang('Maintenance'));
 
 // Displaying the header
 $nameTools = get_lang('Backup');
@@ -32,17 +33,17 @@ Display::display_header($nameTools);
 api_display_tool_title($nameTools);
 
 /*		MAIN CODE	*/
-?>
 
+?>
   <ul>
     <li><a href="create_backup.php"><?php echo get_lang('CreateBackup')  ?></a><br/>
-    <?php echo get_lang('CreateBackupInfo') ?>
+    <?php echo get_lang('CreateBackupInfo'); ?>
     </li>
     <li><a href="import_backup.php"><?php echo get_lang('ImportBackup')  ?></a><br/>
-    <?php echo get_lang('ImportBackupInfo') ?>
+    <?php echo get_lang('ImportBackupInfo'); ?>
     </li>
   </ul>
 <?php
+
 // Display the footer
 Display::display_footer();
-?>
\ No newline at end of file
diff --git a/main/coursecopy/copy_course.php b/main/coursecopy/copy_course.php
index 0072577d0e..6d38556762 100755
--- a/main/coursecopy/copy_course.php
+++ b/main/coursecopy/copy_course.php
@@ -1,46 +1,44 @@
-<?php // $Id: copy_course.php 22204 2009-07-17 20:31:35Z iflorespaz $
-/* For licensing terms, see /dokeos_license.txt */
+<?php
+/* For licensing terms, see /license.txt */
 
-// name of the language file that needs to be included
+// Language files that need to be included
 $language_file = array('exercice', 'coursebackup', 'admin');
 
-// setting the global file that gets the general configuration, the databases, the languages, ...
+// Setting the global file that gets the general configuration, the databases, the languages, ...
 require_once '../inc/global.inc.php';
 
-// including additional libraries
-require_once api_get_path(LIBRARY_PATH) . 'fileManage.lib.php';
+// Including additional libraries
+require_once api_get_path(LIBRARY_PATH).'fileManage.lib.php';
 require_once 'classes/CourseBuilder.class.php';
 require_once 'classes/CourseRestorer.class.php';
 require_once 'classes/CourseSelectForm.class.php';
 
-// notice for unauthorized people.
-if (!api_is_allowed_to_edit())
-{
+// Notice for unauthorized people.
+if (!api_is_allowed_to_edit()) {
 	api_not_allowed(true);
 }
 
-//remove memory and time limits as much as possible as this might be a long process...
-if(function_exists('ini_set'))
-{
-	ini_set('memory_limit','256M');
-	ini_set('max_execution_time',1800);
+// Remove memory and time limits as much as possible as this might be a long process...
+if (function_exists('ini_set')) {
+	ini_set('memory_limit', '256M');
+	ini_set('max_execution_time', 1800);
 }
 
-// breadcrumbs
-$interbreadcrumb[] = array ("url" => "../course_info/maintenance.php", "name" => get_lang('Maintenance'));
+// Breadcrumbs
+$interbreadcrumb[] = array ('url' => '../course_info/maintenance.php', 'name' => get_lang('Maintenance'));
 
-// the section (for the tabs)
-$this_section=SECTION_COURSES;
+// The section (for the tabs)
+$this_section = SECTION_COURSES;
 
 // Display the header
 Display::display_header(get_lang('CopyCourse'));
 //api_display_tool_title($nameTools);
-/*
-		MAIN CODE
-*/
+
+/*	MAIN CODE */
+
 // If a CourseSelectForm is posted or we should copy all resources, then copy them
-if ((isset ($_POST['action']) && $_POST['action'] == 'course_select_form') || (isset ($_POST['copy_option']) && $_POST['copy_option'] == 'full_copy')) {
-	if (isset ($_POST['action']) && $_POST['action'] == 'course_select_form') {
+if ((isset($_POST['action']) && $_POST['action'] == 'course_select_form') || (isset($_POST['copy_option']) && $_POST['copy_option'] == 'full_copy')) {
+	if (isset($_POST['action']) && $_POST['action'] == 'course_select_form') {
 		$course = CourseSelectForm :: get_posted_course('copy_course');
 	} else {
 		$cb = new CourseBuilder();
@@ -74,12 +72,12 @@ if ((isset ($_POST['action']) && $_POST['action'] == 'course_select_form') || (i
 	}
 	$sql .= ' AND target_course_code IS NULL AND cu.user_id = '.$user_info['user_id'].' AND c.code != '."'".$course_info['sysCode']."'".' ORDER BY title ASC';
 	$res = Database::query($sql);
-	if( Database::num_rows($res) == 0) {
+	if (Database::num_rows($res) == 0) {
 		Display::display_normal_message(get_lang('NoDestinationCoursesAvailable'));
 	} else {
 ?>
 	<form method="post" action="copy_course.php">
-	<?php
+<?php
 	echo get_lang('SelectDestinationCourse');
 	echo ' <select name="destination_course"/>';
 	while ($obj = Database::fetch_object($res)) {
@@ -90,30 +88,29 @@ if ((isset ($_POST['action']) && $_POST['action'] == 'course_select_form') || (i
 	<br/>
 	<br/>
 	<input type="radio" class="checkbox" id="copy_option_1" name="copy_option" value="full_copy"/>
-	<label for="copy_option_1"><?php echo get_lang('FullCopy') ?></label>
+	<label for="copy_option_1"><?php echo get_lang('FullCopy'); ?></label>
 	<br/>
 	<input type="radio" class="checkbox" id="copy_option_2" name="copy_option" value="select_items" checked="checked"/>
-	<label for="copy_option_2"><?php echo get_lang('LetMeSelectItems') ?></label>
+	<label for="copy_option_2"><?php echo get_lang('LetMeSelectItems'); ?></label>
 	<br/>
 	<br/>
-	<?php echo get_lang('SameFilename') ?>
+	<?php echo get_lang('SameFilename'); ?>
 	<blockquote>
-	<input type="radio" class="checkbox"  id="same_file_name_option_1" name="same_file_name_option" value="<?php echo FILE_SKIP ?>"/>
-	<label for="same_file_name_option_1"><?php echo  get_lang('SameFilenameSkip') ?></label>
+	<input type="radio" class="checkbox"  id="same_file_name_option_1" name="same_file_name_option" value="<?php echo FILE_SKIP; ?>"/>
+	<label for="same_file_name_option_1"><?php echo  get_lang('SameFilenameSkip'); ?></label>
 	<br/>
-	<input type="radio" class="checkbox" id="same_file_name_option_2" name="same_file_name_option" value="<?php echo FILE_RENAME ?>"/>
-	<label for="same_file_name_option_2"><?php echo get_lang('SameFilenameRename') ?></label>
+	<input type="radio" class="checkbox" id="same_file_name_option_2" name="same_file_name_option" value="<?php echo FILE_RENAME; ?>"/>
+	<label for="same_file_name_option_2"><?php echo get_lang('SameFilenameRename'); ?></label>
 	<br/>
-	<input type="radio" class="checkbox"  id="same_file_name_option_3" name="same_file_name_option"  value="<?php echo FILE_OVERWRITE ?>"  checked="checked"/>
-	<label for="same_file_name_option_3"><?php echo get_lang('SameFilenameOverwrite') ?></label>
+	<input type="radio" class="checkbox"  id="same_file_name_option_3" name="same_file_name_option"  value="<?php echo FILE_OVERWRITE; ?>" checked="checked"/>
+	<label for="same_file_name_option_3"><?php echo get_lang('SameFilenameOverwrite'); ?></label>
 	</blockquote>
 	<br/>
-	<button class="save" type="submit"><?php echo get_lang('CopyCourse') ?></button>
+	<button class="save" type="submit"><?php echo get_lang('CopyCourse'); ?></button>
 	</form>
-	<?php
+<?php
 	}
-
 }
-/*		FOOTER	*/
+
+/*	FOOTER	*/
 Display::display_footer();
-?>
diff --git a/main/coursecopy/copy_course_session.php b/main/coursecopy/copy_course_session.php
index fe30e70c6e..5a890cc6ee 100755
--- a/main/coursecopy/copy_course_session.php
+++ b/main/coursecopy/copy_course_session.php
@@ -1,5 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
+
 /**
  * Copy resources from one course in a session to another one.
  *
@@ -9,12 +10,13 @@
 
 /*  INIT SECTION  */
 
-// name of the language file that needs to be included
-$language_file = array('coursebackup','admin');
+// Language files that need to be included
+$language_file = array('coursebackup', 'admin');
+
 $cidReset = true;
 require_once '../inc/global.inc.php';
-require_once api_get_path(LIBRARY_PATH) . 'fileManage.lib.php';
-require_once api_get_path(LIBRARY_PATH) . 'sessionmanager.lib.php';
+require_once api_get_path(LIBRARY_PATH).'fileManage.lib.php';
+require_once api_get_path(LIBRARY_PATH).'sessionmanager.lib.php';
 require_once 'classes/CourseBuilder.class.php';
 require_once 'classes/CourseRestorer.class.php';
 require_once 'classes/CourseSelectForm.class.php';
@@ -27,18 +29,16 @@ if (!api_is_allowed_to_edit() && !api_is_session_admin()) {
 	api_not_allowed(true);
 }
 
-//remove memory and time limits as much as possible as this might be a long process...
-if(function_exists('ini_set')) {
-	ini_set('memory_limit','256M');
-	ini_set('max_execution_time',1800);
+// Remove memory and time limits as much as possible as this might be a long process...
+if (function_exists('ini_set')) {
+	ini_set('memory_limit', '256M');
+	ini_set('max_execution_time', 1800);
 }
 
-$this_section=SECTION_PLATFORM_ADMIN;
-
-
+$this_section = SECTION_PLATFORM_ADMIN;
 
 $nameTools = get_lang('CopyCourse');
-$interbreadcrumb[]=array('url' => '../admin/index.php',"name" => get_lang('PlatformAdmin'));
+$interbreadcrumb[] = array('url' => '../admin/index.php', 'name' => get_lang('PlatformAdmin'));
 
 // Database Table Definitions
 $tbl_session_rel_course_rel_user	= Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
@@ -49,7 +49,7 @@ $tbl_course							= Database::get_main_table(TABLE_MAIN_COURSE);
 
 /* FUNCTIONS */
 
-function make_select_session_list($name,$sessions,$attr = array()) {
+function make_select_session_list($name, $sessions, $attr = array()) {
 
 	$attrs = '';
 	if (count($attr) > 0) {
@@ -76,15 +76,13 @@ function make_select_session_list($name,$sessions,$attr = array()) {
 
 function display_form() {
 
-	global $charset;
-
 	$html  = '';
 	$sessions = SessionManager::get_sessions_list();
 
-	// actions
+	// Actions
 	$html .= '<div class="sectiontitle">';
-	// link back to the documents overview
-	$html .= '<a href="../admin/index.php">'.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('PlatformAdmin'),array('style'=>'vertical-align:middle')).get_lang('BackTo').' '.get_lang('PlatformAdmin').'</a>';
+	// Link back to the documents overview
+	$html .= '<a href="../admin/index.php">'.Display::return_icon('back.png', get_lang('BackTo').' '.get_lang('PlatformAdmin'), array('style' => 'vertical-align:middle')).get_lang('BackTo').' '.get_lang('PlatformAdmin').'</a>';
 	$html .= '</div>';
 
 	$html .= '<div class="row"><div class="form_header">'.get_lang('CopyCourse').'</div></div>';
@@ -94,9 +92,9 @@ function display_form() {
 
 	$html .= '<tr><td width="30%" align="center"><b>'.get_lang('OriginCoursesFromSession').':</b></td>';
 	$html .= '<td >&nbsp;</td><td align="center" width="30%"><b>'.get_lang('DestinationCoursesFromSession').':</b></td></tr>';
-	$html .= '<tr><td width="30%" align="center">'.make_select_session_list('sessions_list_origin',$sessions,array('onchange'=>'xajax_search_courses(this.value,\'origin\')')).'</td>';
+	$html .= '<tr><td width="30%" align="center">'.make_select_session_list('sessions_list_origin', $sessions, array('onchange' => 'javascript: xajax_search_courses(this.value,\'origin\');')).'</td>';
 	$html .= '<td>&nbsp;</td><td width="30%" align="center"><div id="ajax_sessions_list_destination">';
-	$html .= '<select name="sessions_list_destination" onchange = "xajax_search_courses(this.value,\'destination\')">';
+	$html .= '<select name="sessions_list_destination" onchange = "javascript: xajax_search_courses(this.value,\'destination\');">';
 	$html .= '<option value = "0">'.get_lang('ThereIsNotStillASession').'</option></select ></div></td></tr>';
 
 	$html .= '<tr><td width="30%" align="center"><div id="ajax_list_courses_origin">';
@@ -105,17 +103,14 @@ function display_form() {
 	// Options configuration
 	//$html .= '<td align="top"><div class="sectiontitle">'.get_lang('CopyCourse').'</div>';
 	$html .= '<td align="top">';
-	$introduction = get_lang('CopyCourseFromSessionToSessionExplanation',true);
+	$introduction = get_lang('CopyCourseFromSessionToSessionExplanation');
 	$html .= '<div class="normal-message">'.$introduction.'</div>';
 	$html .= '<div style="height:150px;padding-top:10px;padding-bottom:50px"><h3>'.get_lang('TypeOfCopy').'</h3>';
 	$html .= '<input type="radio" class="checkbox" id="copy_option_1" name="copy_option" value="full_copy" checked="checked"/>';
 	$html .= '<label for="copy_option_1">'.get_lang('FullCopy').'</label><br/>';
 	$html .= '<input type="radio" class="checkbox" id="copy_option_2" name="copy_option" value="select_items" disabled="disabled"/>';
 	$html .= '<label for="copy_option_2"><span id="title_option2" style="color:#aaa">'.get_lang('LetMeSelectItems').'</span></label><br/><br/>';
-	$html .= '<button class="save" type="submit" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang("ConfirmYourChoice"),ENT_QUOTES,$charset))."'".')) return false;">'.get_lang('CopyCourse').'</button></div>';
-
-
-
+	$html .= '<button class="save" type="submit" onclick="javascript:if(!confirm('."'".addslashes(api_htmlentities(get_lang("ConfirmYourChoice"), ENT_QUOTES))."'".')) return false;">'.get_lang('CopyCourse').'</button></div>';
 
 	$html .= '</td><td width="30%" align="center">';
 	$html .= '<div id="ajax_list_courses_destination">';
@@ -125,7 +120,8 @@ function display_form() {
 	echo $html;
 }
 
-function search_courses($id_session,$type) {
+function search_courses($id_session, $type) {
+
 	global $tbl_course, $tbl_session_rel_course, $course_list;
 
 	$xajax_response = new XajaxResponse();
@@ -137,7 +133,7 @@ function search_courses($id_session,$type) {
 
 		if ($type == 'origin') {
 
-			// search courses by id_session for origin list
+			// Search courses by id_session for origin list
 			$sql = "SELECT c.code, c.visual_code, c.title, src.id_session
 					FROM $tbl_course c, $tbl_session_rel_course src
 					WHERE src.course_code = c.code
@@ -146,13 +142,12 @@ function search_courses($id_session,$type) {
 
 			$course_list = array();
 
-			$return .= '<select id="origin" name="SessionCoursesListOrigin[]" multiple="multiple" size="20" style="width:320px;" onclick="checkSelected(this.id,\'copy_option_2\',\'title_option2\',\'destination\')">';
-			while($course = Database :: fetch_array($rs)) {
+			$return .= '<select id="origin" name="SessionCoursesListOrigin[]" multiple="multiple" size="20" style="width:320px;" onclick="javascript: checkSelected(this.id,\'copy_option_2\',\'title_option2\',\'destination\');">';
+			while ($course = Database :: fetch_array($rs)) {
 				$course_list[] = "'{$course['code']}'";
 				$course_title=str_replace("'","\'",$course_title);
 
-				$return .= '<option value="'.$course['code'].'" title="'.htmlspecialchars($course['title'].' ('.$course['visual_code'].')',ENT_QUOTES).'">'.$course['title'].' ('.$course['visual_code'].')</option>';
-
+				$return .= '<option value="'.$course['code'].'" title="'.@htmlspecialchars($course['title'].' ('.$course['visual_code'].')', ENT_QUOTES, api_get_system_encoding()).'">'.$course['title'].' ('.$course['visual_code'].')</option>';
 			}
 
 			$return .= '</select>';
@@ -170,34 +165,34 @@ function search_courses($id_session,$type) {
 
 				$rs_select_destination = Database::query($sql);
 
-				$select_destination .= '<select name="sessions_list_destination" onchange = "xajax_search_courses(this.value,\'destination\')">';
+				$select_destination .= '<select name="sessions_list_destination" onchange = "javascript: xajax_search_courses(this.value,\'destination\');">';
 				$select_destination .= '<option value = "0">'.get_lang('SelectASession').'</option>';
 				while($session = Database :: fetch_array($rs_select_destination)) {
 
 					$select_destination .= '<option value="'.$session['id'].'">'.$session['name'].' ('.$session['category_name'].')</option>';
 				}
 				$select_destination .= '</select>';
-				$xajax_response -> addAssign('ajax_sessions_list_destination','innerHTML',api_utf8_encode($select_destination));
+				$xajax_response -> addAssign('ajax_sessions_list_destination', 'innerHTML', api_utf8_encode($select_destination));
 			} else{
-				$select_destination .= '<select name="sessions_list_destination" onchange = "xajax_search_courses(this.value,\'destination\')">';
+				$select_destination .= '<select name="sessions_list_destination" onchange = "javascript: xajax_search_courses(this.value,\'destination\');">';
 				$select_destination .= '<option value = "0">'.get_lang('ThereIsNotStillASession').'</option>';
 				$select_destination .= '</select>';
-				$xajax_response -> addAssign('ajax_sessions_list_destination','innerHTML',api_utf8_encode($select_destination));
+				$xajax_response -> addAssign('ajax_sessions_list_destination', 'innerHTML', api_utf8_encode($select_destination));
 			}
 
-			// select multiple destination empty
+			// Select multiple destination empty
 			$select_multiple_empty = '<select id="destination" name="SessionCoursesListDestination[]" multiple="multiple" size="20" style="width:320px;"></select>';
 
-			// send response by ajax
-			$xajax_response -> addAssign('ajax_list_courses_origin','innerHTML',api_utf8_encode($return));
-			$xajax_response -> addAssign('ajax_list_courses_destination','innerHTML',api_utf8_encode($select_multiple_empty));
+			// Send response by ajax
+			$xajax_response -> addAssign('ajax_list_courses_origin', 'innerHTML', api_utf8_encode($return));
+			$xajax_response -> addAssign('ajax_list_courses_destination', 'innerHTML', api_utf8_encode($select_multiple_empty));
 
 		} else {
 
-			$list_courses_origin = implode(',',$_SESSION['course_list']);
+			$list_courses_origin = implode(',', $_SESSION['course_list']);
 			$session_origin = $_SESSION['session_origin'];
 
-			// search courses by id_session where course codes is include en courses list destination
+			// Search courses by id_session where course codes is include en courses list destination
 			$sql = "SELECT c.code, c.visual_code, c.title, src.id_session
 					FROM $tbl_course c, $tbl_session_rel_course src
 					WHERE src.course_code = c.code
@@ -206,48 +201,46 @@ function search_courses($id_session,$type) {
 			$rs = Database::query($sql);
 
 			$course_list_destination = array();
-			$return .= '<select id="destination" name="SessionCoursesListDestination[]" multiple="multiple" size="20" style="width:320px;" onmouseover="this.disabled=true;" onmouseout="this.disabled=false;">';
-			while($course = Database :: fetch_array($rs)) {
+			$return .= '<select id="destination" name="SessionCoursesListDestination[]" multiple="multiple" size="20" style="width:320px;" onmouseover="javascript: this.disabled=true;" onmouseout="javascript: this.disabled=false;">';
+			while ($course = Database :: fetch_array($rs)) {
 				$course_list_destination[] = $course['code'];
-				$course_title=str_replace("'","\'",$course_title);
-				$return .= '<option value="'.$course['code'].'" title="'.htmlspecialchars($course['title'].' ('.$course['visual_code'].')',ENT_QUOTES).'">'.$course['title'].' ('.$course['visual_code'].')</option>';
+				$course_title = str_replace("'", "\'", $course_title);
+				$return .= '<option value="'.$course['code'].'" title="'.@htmlspecialchars($course['title'].' ('.$course['visual_code'].')', ENT_QUOTES, api_get_system_encoding()).'">'.$course['title'].' ('.$course['visual_code'].')</option>';
 			}
 			$return .= '</select>';
 			$_SESSION['course_list_destination'] = $course_list_destination;
 
-			// send response by ajax
-			$xajax_response -> addAssign('ajax_list_courses_destination','innerHTML',api_utf8_encode($return));
+			// Send response by ajax
+			$xajax_response -> addAssign('ajax_list_courses_destination', 'innerHTML', api_utf8_encode($return));
 
-			// disable option from session courses list origin where if no the same con the destination
+			// Disable option from session courses list origin where if no the same con the destination
 			$sql = "SELECT c.code, c.visual_code, c.title, src.id_session
 					FROM $tbl_course c, $tbl_session_rel_course src
 					WHERE src.course_code = c.code
 					AND src.id_session = '".intval($session_origin)."'";
 			$result = Database::query($sql);
 
-			$return_option_disabled = '<select id="origin" name="SessionCoursesListOrigin[]" multiple="multiple" size="20" style="width:320px;" onclick="checkSelected(this.id,\'copy_option_2\',\'title_option2\',\'destination\')">';
-			while($cours = Database :: fetch_array($result)) {
-				$course_title=str_replace("'","\'",$course_title);
+			$return_option_disabled = '<select id="origin" name="SessionCoursesListOrigin[]" multiple="multiple" size="20" style="width:320px;" onclick="javascript: checkSelected(this.id,\'copy_option_2\',\'title_option2\',\'destination\');">';
+			while ($cours = Database :: fetch_array($result)) {
+				$course_title=str_replace("'", "\'", $course_title);
 				if (count($course_list_destination) > 0) {
-					if (!in_array($cours['code'],$course_list_destination)) {
+					if (!in_array($cours['code'], $course_list_destination)) {
 						$return_option_disabled .= '<optgroup style="color:#ccc" label="'.$cours['title'].' ('.$cours['visual_code'].')" >'.$cours['title'].' ('.$cours['visual_code'].')</optgroup>';
 					} else {
-						$return_option_disabled .= '<option value="'.$cours['code'].'" title="'.htmlspecialchars($cours['title'].' ('.$cours['visual_code'].')',ENT_QUOTES).'">'.$cours['title'].' ('.$cours['visual_code'].')</option>';
+						$return_option_disabled .= '<option value="'.$cours['code'].'" title="'.@htmlspecialchars($cours['title'].' ('.$cours['visual_code'].')', ENT_QUOTES, api_get_system_encoding()).'">'.$cours['title'].' ('.$cours['visual_code'].')</option>';
 					}
 				} else {
 					if (empty($id_session)) {
-						$return_option_disabled .= '<option value="'.$cours['code'].'" title="'.htmlspecialchars($cours['title'].' ('.$cours['visual_code'].')',ENT_QUOTES).'">'.$cours['title'].' ('.$cours['visual_code'].')</option>';
+						$return_option_disabled .= '<option value="'.$cours['code'].'" title="'.@htmlspecialchars($cours['title'].' ('.$cours['visual_code'].')', ENT_QUOTES, api_get_system_encoding()).'">'.$cours['title'].' ('.$cours['visual_code'].')</option>';
 					} else {
 						$return_option_disabled .= '<optgroup style="color:#ccc" label="'.$cours['title'].'('.$cours['visual_code'].')" >'.$cours['title'].' ('.$cours['visual_code'].')</optgroup>';
 					}
-
 				}
 			}
 			$return_option_disabled .= '</select>';
-			// send response by ajax
-			$xajax_response -> addAssign('ajax_list_courses_origin','innerHTML',api_utf8_encode($return_option_disabled));
+			// Send response by ajax
+			$xajax_response -> addAssign('ajax_list_courses_origin', 'innerHTML', api_utf8_encode($return_option_disabled));
 		}
-
 	}
 	return $xajax_response;
 }
@@ -256,7 +249,7 @@ $xajax -> processRequests();
 /* HTML head extra */
 
 $htmlHeadXtra[] = $xajax->getJavascript('../inc/lib/xajax/');
-$htmlHeadXtra[] = '<script language="javascript">
+$htmlHeadXtra[] = '<script type="text/javascript">
 
 						function checkSelected(id_select,id_radio,id_title,id_destination) {
 						   var num=0;
@@ -301,7 +294,7 @@ Display::display_header($nameTools);
 
 /*  MAIN CODE  */
 
-if ((isset ($_POST['action']) && $_POST['action'] == 'course_select_form') || (isset ($_POST['copy_option']) && $_POST['copy_option'] == 'full_copy')) {
+if ((isset($_POST['action']) && $_POST['action'] == 'course_select_form') || (isset($_POST['copy_option']) && $_POST['copy_option'] == 'full_copy')) {
 
 	$destination_course = $origin_course = $destination_session = $origin_session = '';
 
@@ -338,7 +331,7 @@ if ((isset ($_POST['action']) && $_POST['action'] == 'course_select_form') || (i
 			$origin_session 		= $_POST['sessions_list_origin'];
 		}
 
-		if ((is_array($arr_course_origin) && count($arr_course_origin) > 0)  && !empty($destination_session)) {
+		if ((is_array($arr_course_origin) && count($arr_course_origin) > 0) && !empty($destination_session)) {
 
 			foreach ($arr_course_origin as $course_origin) {
 
@@ -358,7 +351,7 @@ if ((isset ($_POST['action']) && $_POST['action'] == 'course_select_form') || (i
 
 	}
 
-} elseif (isset ($_POST['copy_option']) && $_POST['copy_option'] == 'select_items') {
+} elseif (isset($_POST['copy_option']) && $_POST['copy_option'] == 'select_items') {
 
 	// Else, if a CourseSelectForm is requested, show it
 	if (api_get_setting('show_glossary_in_documents') != 'none') {
@@ -393,7 +386,7 @@ if ((isset ($_POST['action']) && $_POST['action'] == 'course_select_form') || (i
 		$hidden_fields['destination_session'] 	= $destination_session;
 		$hidden_fields['origin_session'] 		= $origin_session;
 		CourseSelectForm :: display_form($course,$hidden_fields, true);
-		echo '<div style="float:right"><a href="javascript:window.back();">'.Display::return_icon('back.png',get_lang('Back').' '.get_lang('To').' '.get_lang('PlatformAdmin'),array('style'=>'vertical-align:middle')).get_lang('Back').'</a></div>';
+		echo '<div style="float:right"><a href="javascript:window.back();">'.Display::return_icon('back.png', get_lang('Back').' '.get_lang('To').' '.get_lang('PlatformAdmin'), array('style' => 'vertical-align:middle')).get_lang('Back').'</a></div>';
 	} else {
 		Display::display_error_message(get_lang('You must select a course from original session and select a destination session'));
 		display_form();
diff --git a/main/coursecopy/recycle_course.php b/main/coursecopy/recycle_course.php
index 679b47899b..2b3371704e 100755
--- a/main/coursecopy/recycle_course.php
+++ b/main/coursecopy/recycle_course.php
@@ -1,5 +1,6 @@
-<?php // $Id: recycle_course.php 19948 2009-04-21 17:27:59Z juliomontoya $
+<?php
 /* For licensing terms, see /license.txt */
+
 /**
  * Delete resources from a course.
  *
@@ -7,27 +8,28 @@
  * @package chamilo.backup
  */
 
-// name of the language file that needs to be included
+// Language files that need to be included
 $language_file = array ('exercice', 'admin', 'course_info', 'coursebackup');
 
-// including the global file
+// Including the global initialization file
 require_once '../inc/global.inc.php';
 
 // Check access rights (only teachers are allowed here)
-if( ! api_is_allowed_to_edit()) {
+if (!api_is_allowed_to_edit()) {
 	api_not_allowed(true);
 }
-// section for the tabs
-$this_section=SECTION_COURSES;
 
-// breadcrumbs
-$interbreadcrumb[] = array ("url" => "../course_info/maintenance.php", "name" => get_lang('Maintenance'));
+// Section for the tabs
+$this_section = SECTION_COURSES;
+
+// Breadcrumbs
+$interbreadcrumb[] = array('url' => '../course_info/maintenance.php', 'name' => get_lang('Maintenance'));
 
 // Displaying the header
 $nameTools = get_lang('RecycleCourse');
 Display::display_header($nameTools);
 
-// include additional libraries
+// Include additional libraries
 require_once 'classes/CourseBuilder.class.php';
 require_once 'classes/CourseArchiver.class.php';
 require_once 'classes/CourseRecycler.class.php';
@@ -37,8 +39,9 @@ require_once 'classes/CourseSelectForm.class.php';
 api_display_tool_title($nameTools);
 
 /*		MAIN CODE	*/
-if(  (isset($_POST['action']) && $_POST['action'] == 'course_select_form' ) || (isset($_POST['recycle_option']) && $_POST['recycle_option'] == 'full_backup' ) ) {
-	if(isset($_POST['action']) && $_POST['action'] == 'course_select_form' ) {
+
+if ((isset($_POST['action']) && $_POST['action'] == 'course_select_form') || (isset($_POST['recycle_option']) && $_POST['recycle_option'] == 'full_backup')) {
+	if (isset($_POST['action']) && $_POST['action'] == 'course_select_form') {
 		$course = CourseSelectForm::get_posted_course();
 	} else {
 		$cb = new CourseBuilder();
@@ -47,31 +50,31 @@ if(  (isset($_POST['action']) && $_POST['action'] == 'course_select_form' ) || (
 	$cr = new CourseRecycler($course);
 	$cr->recycle();
 	Display::display_confirmation_message(get_lang('RecycleFinished'));
-} elseif( isset($_POST['recycle_option']) && $_POST['recycle_option'] == 'select_items') {
+} elseif (isset($_POST['recycle_option']) && $_POST['recycle_option'] == 'select_items') {
 	$cb = new CourseBuilder();
 	$course = $cb->build();
 	CourseSelectForm::display_form($course);
 } else {
 	$cb = new CourseBuilder();
 	$course = $cb->build();
-	if( ! $course->has_resources()) {
+	if (!$course->has_resources()) {
 		echo get_lang('NoResourcesToRecycle');
 	} else {
-		Display::display_warning_message(get_lang('RecycleWarning'),false);
-	?>
+		Display::display_warning_message(get_lang('RecycleWarning'), false);
+?>
 	<form method="post" action="recycle_course.php">
 	<input type="radio" class="checkbox" id="recycle_option_1" name="recycle_option" value="full_backup" checked="checked"/>
-	<label for="recycle_option_1"><?php echo get_lang('FullRecycle') ?></label>
+	<label for="recycle_option_1"><?php echo get_lang('FullRecycle'); ?></label>
 	<br/>
 	<input type="radio" class="checkbox" id="recycle_option_2" name="recycle_option" value="select_items"/>
-	<label for="recycle_option_2"><?php echo get_lang('LetMeSelectItems') ?></label>
+	<label for="recycle_option_2"><?php echo get_lang('LetMeSelectItems'); ?></label>
 	<br/>
 	<br/>
-	<button class="save" type="submit"><?php echo get_lang('RecycleCourse') ?></button>
+	<button class="save" type="submit"><?php echo get_lang('RecycleCourse'); ?></button>
 	</form>
-	<?php
+<?php
 	}
 }
+
 // Display the footer
 Display::display_footer();
-?>
\ No newline at end of file