After submitting the form, stay in the same page

main/admin/archive_cleanup.php

@@ -17,7 +17,6 @@ $this_section = SECTION_PLATFORM_ADMIN;
 
 // Access restrictions
 api_protect_admin_script(true);
-//api_protect_global_admin_script();
 
 // setting breadcrumbs
 $interbreadcrumb[]=array('url' => 'index.php','name' => get_lang('PlatformAdmin'));
@@ -25,26 +24,43 @@ $interbreadcrumb[]=array('url' => 'index.php','name' => get_lang('PlatformAdmin'
 $form = new FormValidator('archive_cleanup_form');
 $form->addElement('style_submit_button','proceed', get_lang('ArchiveDirCleanupProceedButton'),'class="save"');
 
+$message = null;
+
 if ($form->validate()) {
 	$archive_path = api_get_path(SYS_ARCHIVE_PATH);
-	$htaccess 	  = @file_get_contents($archive_path.'.htaccess');	
+	$htaccess 	  = @file_get_contents($archive_path.'.htaccess');
 	$result 	  = rmdirr($archive_path, true);
-	
-	if (!empty($htaccess)) {	
+
+	if (!empty($htaccess)) {
 		@file_put_contents($archive_path.'/.htaccess', $htaccess);
-	}	
-	if ($result) {		
+	}
+	if ($result) {
 		$message = 'ArchiveDirCleanupSucceeded';
 		$type = 'confirmation';
-	} else {		
+	} else {
 		$message = 'ArchiveDirCleanupFailed';
 		$type = 'error';
 	}
-	header('Location: index.php?msg='.$message.'&type='.$type);
-	exit;	
+	header('Location: '.api_get_self().'?msg='.$message.'&type='.$type);
+	exit;
 }
 
 Display::display_header(get_lang('ArchiveDirCleanup'));
 Display::display_normal_message(get_lang('ArchiveDirCleanupDescr'));
+
+if (isset($_GET['msg']) && isset($_GET['type'])) {
+	if (in_array($_GET['msg'], array('ArchiveDirCleanupSucceeded', 'ArchiveDirCleanupFailed')))
+	switch($_GET['type']) {
+		case 'error':
+			$message = Display::return_message(get_lang($_GET['msg']), 'error');
+			break;
+		case 'confirmation':
+			$message = Display::return_message(get_lang($_GET['msg']), 'confirm');
+	}
+}
+
+if (!empty($message)) {
+    echo $message;
+}
 $form->display();
 Display::display_footer();