diff --git a/mailto.js b/mailto.js
index 626dba4..0ec3ed0 100644
--- a/mailto.js
+++ b/mailto.js
@@ -1,3 +1,6 @@
-mail = $('span.mailto').html();
-mail = mail.replace('<span style="display:none;">no-thx-</span>','');
-$('span.mailto').html('<a href="mailto:'+mail+'">'+ mail +'</a>');
\ No newline at end of file
+(function(){
+  //TODO vanilla
+  var mail = $('span.mailto').html();
+  mail = mail.replace('<span style="display:none;">no-thx-</span>','');
+  $('span.mailto').html('<a href="mailto:'+mail+'">'+ mail +'</a>');
+})();
\ No newline at end of file