use mustache to abstract out html logic in javascript

app/assets/javascripts/user/application.js.erb

@@ -27,6 +27,7 @@
 //= require twitter/bootstrap/bootstrap-typeahead
 //= require twitter/bootstrap/bootstrap-affix
 //= require qwaiter
+//= require mustache
 //= require_directory .
 //= require_self
 var path_mapping = {
@@ -176,9 +177,20 @@ $(function(){
     container.show();
   }
   $('[data-t]').each(function(){$(this).text(t($(this).attr('data-t')))})
+  setTranslations();
 });
 function setLocale(locale){
   QMobile.setLocale(locale);
   $locale = locale;
-  $('[data-t]').each(function(){$(this).text(t($(this).attr('data-t')))})
+  setTranslations();
+}
+function Qupdate(selector){
+  setTranslations(selector);
+}
+function setTranslations(selector){
+  if(selector){
+    $(selector).find('[data-t]').each(function(){$(this).text(t($(this).attr('data-t')))})
+  }else{
+    $('[data-t]').each(function(){$(this).text(t($(this).attr('data-t')))})
+  }
 }