reuse code assign attributes to a remote link

www/support/inner.js

@@ -12,6 +12,7 @@ define([
     '/support/ui.js',
     '/api/config',
     '/customize/application_config.js',
+    '/customize/pages.js',
 
     'css!/bower_components/bootstrap/dist/css/bootstrap.min.css',
     'css!/bower_components/components-font-awesome/css/font-awesome.min.css',
@@ -29,7 +30,8 @@ define([
     h,
     Support,
     ApiConfig,
-    AppConfig
+    AppConfig,
+    Pages
     )
 {
     var APP = window.APP = {};
@@ -168,11 +170,7 @@ define([
     create['form'] = function () {
         var key = 'form';
         var $div = makeBlock(key, true); // Msg.support_formHint, .support_formTitle, .support_formButton
-        $div.find('a').attr({
-            rel: 'noopener noreferrer',
-            target: '_blank',
-            href: 'https://docs.cryptpad.fr/en/user_guide/index.html',
-        });
+        Pages.externalLink($div.find('a')[0], 'https://docs.cryptpad.fr/en/user_guide/index.html');
 
         var form = APP.support.makeForm();