[svn r13541] fix a bug when deleting someone from the course of the session

main/admin/session_course_user_list.php

@@ -18,6 +18,7 @@ $course_code=trim(stripslashes($_GET['course_code']));
 $page=intval($_GET['page']);
 $action=$_REQUEST['action'];
 $sort=in_array($_GET['sort'],array('lastname','firstname','username'))?$_GET['sort']:'lastname';
+$idChecked = (is_array($_GET['idChecked']) ? $_GET['idChecked'] : (is_array($_POST['idChecked']) ? $_POST['idChecked'] : null));
 
 $result=api_sql_query("SELECT name,title FROM $tbl_session,$tbl_course WHERE id='$id_session' AND code='".addslashes($course_code)."'",__FILE__,__LINE__);
 
@@ -34,7 +35,7 @@ if($action == 'delete')
 		$idChecked=implode(',',$idChecked);
 
 		api_sql_query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='".addslashes($course_code)."' AND id_user IN($idChecked)",__FILE__,__LINE__);
-
+		
 		$nbr_affected_rows=mysql_affected_rows();
 
 		api_sql_query("UPDATE $tbl_session_rel_course SET nbr_users=nbr_users-$nbr_affected_rows WHERE id_session='$id_session' AND course_code='".addslashes($course_code)."'",__FILE__,__LINE__);