diff --git a/main/coursecopy/import_moodle.php b/main/coursecopy/import_moodle.php
index ede5f7f6f3..7f2557bb1c 100644
--- a/main/coursecopy/import_moodle.php
+++ b/main/coursecopy/import_moodle.php
@@ -1,5 +1,6 @@
 <?php
 /* For licensing terms, see /license.txt */
+
 use ChamiloSession as Session;
 
 /**
@@ -31,7 +32,7 @@ $this_section = SECTION_COURSES;
 
 // Breadcrumbs
 $interbreadcrumb[] = array(
-    'url' => '../course_info/maintenance.php',
+    'url' => api_get_path(WEB_CODE_PATH).'course_info/maintenance.php?'.api_get_cidreq(),
     'name' => get_lang('Maintenance')
 );
 
diff --git a/main/exercise/TestCategory.php b/main/exercise/TestCategory.php
index 7afab568fd..abd220f1f7 100644
--- a/main/exercise/TestCategory.php
+++ b/main/exercise/TestCategory.php
@@ -26,9 +26,9 @@ class TestCategory
      *
      * @author - Hubert Borderiou
      */
-    public function __construct($id = 0, $name = '', $description = "")
+    public function __construct($id = 0, $name = '', $description = '')
     {
-        if ($id != 0 && $name == "") {
+        if ($id != 0 && $name == '') {
             $obj = new TestCategory();
             $obj->getCategory($id);
             $this->id = $obj->id;
@@ -108,12 +108,12 @@ class TestCategory
 
             return false;
         }
-	}
+    }
 
-	/**
+    /**
      * Removes the category from the database
      * if there were question in this category, the link between question and category is removed
-	 */
+     */
     public function removeCategory()
     {
         $table = Database :: get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
@@ -233,8 +233,8 @@ class TestCategory
             }
         }
 
-		return $categories;
-	}
+        return $categories;
+    }
 
     /**
      * Return the TestCategory id for question with question_id = $questionId
@@ -247,7 +247,6 @@ class TestCategory
      */
     public static function getCategoryForQuestion($questionId, $courseId = 0)
     {
-        $result = 0;
         if (empty($courseId)) {
             $courseId = api_get_course_int_id();
         }
@@ -257,6 +256,7 @@ class TestCategory
                 FROM $table
                 WHERE question_id = $questionId AND c_id = $courseId";
         $res = Database::query($sql);
+        $result = 0;
         if (Database::num_rows($res) > 0) {
             $data = Database::fetch_array($res);
             $result = $data['category_id'];
@@ -293,12 +293,12 @@ class TestCategory
         if (empty($courseId)) {
             $courseId = api_get_course_int_id();
         }
-        $catid = TestCategory::getCategoryForQuestion($questionId, $courseId);
-        $result = '';	// result
+        $categoryId = TestCategory::getCategoryForQuestion($questionId, $courseId);
+        $result = '';
         $table = Database::get_course_table(TABLE_QUIZ_QUESTION_CATEGORY);
-        $catid = intval($catid);
+        $categoryId = intval($categoryId);
         $sql = "SELECT title FROM $table
-                WHERE id = $catid  AND c_id = $courseId";
+                WHERE id = $categoryId  AND c_id = $courseId";
         $res = Database::query($sql);
         $data = Database::fetch_array($res);
         if (Database::num_rows($res) > 0) {
@@ -314,6 +314,8 @@ class TestCategory
      * return : array of category id (integer)
      * hubert.borderiou 07-04-2011
      * @param int $exerciseId
+     *
+     * @return array
      */
     public static function getListOfCategoriesIDForTest($exerciseId)
     {
@@ -325,7 +327,6 @@ class TestCategory
         $categories = array();
         if (!empty($categoriesInExercise)) {
             foreach ($categoriesInExercise as $category) {
-                //$category['id'] = $category['iid'];
                 $categories[$category['id']] = $category;
             }
         }
@@ -406,6 +407,7 @@ class TestCategory
             $cat['title'] = $cat['name'];
             $result[$cat['id']] = $cat;
         }
+
         return $result;
     }
 
diff --git a/main/exercise/tests_category.php b/main/exercise/tests_category.php
index 936d004933..5d3432f21a 100755
--- a/main/exercise/tests_category.php
+++ b/main/exercise/tests_category.php
@@ -49,7 +49,7 @@ switch ($action) {
         $content = edit_category_form('editcategory');
         break;
     case 'deletecategory':
-        delete_category_form('deletecategory');
+        delete_category_form();
         break;
     case 'export_category':
         $archiveFile = 'export_exercise_categoroes_'.api_get_course_id().'_'.api_get_local_time();
@@ -174,7 +174,7 @@ function edit_category_form($action)
 }
 
 // process to delete a category
-function delete_category_form($action)
+function delete_category_form()
 {
     if (isset($_GET['category_id']) && is_numeric($_GET['category_id'])) {
         $category = new TestCategory($_GET['category_id']);