Add user_portal_load_notification_by_ajax validation

user_portal.php

@@ -39,27 +39,29 @@ $load_dirs = api_get_setting('show_documents_preview');
 $displayMyCourseViewBySessionLink = api_get_setting('my_courses_view_by_session') === 'true';
 $nameTools = get_lang('MyCourses');
 
-// Load notification by ajax
-$htmlHeadXtra[] =  '<script>
-$(function() {
-    $(".course_notification").each(function(index) {
-        var div = $(this);
-        var id = $(this).attr("id");       
-        var idList = id.split("_");
-        var courseId = idList[1];
-        var sessionId = idList[2];
-        var status = idList[3];
-        $.ajax({			
-			type: "GET",
-			url: "'.api_get_path(WEB_AJAX_PATH).'course_home.ajax.php?a=get_notification&course_id="+courseId+"&session_id="+sessionId+"&status="+status,			
-			success: function(data) {			    
-			    div.append(data);			    
-			}
+// Load course notification by ajax
+$loadNotificationsByAjax = api_get_configuration_value('user_portal_load_notification_by_ajax');
+if ($loadNotificationsByAjax) {
+    $htmlHeadXtra[] = '<script>
+    $(function() {
+        $(".course_notification").each(function(index) {
+            var div = $(this);
+            var id = $(this).attr("id");       
+            var idList = id.split("_");
+            var courseId = idList[1];
+            var sessionId = idList[2];
+            var status = idList[3];
+            $.ajax({			
+                type: "GET",
+                url: "'.api_get_path(WEB_AJAX_PATH).'course_home.ajax.php?a=get_notification&course_id="+courseId+"&session_id="+sessionId+"&status="+status,			
+                success: function(data) {			    
+                    div.append(data);			    
+                }
+            });
         });
     });
-});
-
-</script>';
+    </script>';
+}
 
 /*
     Header