Move language stuff to src/language.js

src/index.js

@@ -10,13 +10,13 @@ window.OpenStreetBrowserLoader = OpenStreetBrowserLoader
 
 require('./CategoryIndex')
 require('./CategoryOverpass')
-var tagTranslations = require('./tagTranslations')
 
 var map
 var baseCategory
 
 // Optional modules
 require('./options')
+require('./language')
 
 window.onload = function() {
   map = L.map('map')
@@ -111,14 +111,6 @@ function onload2 () {
       show(url, options, function () {})
     }
   })
-
-  tagTranslations.setTagLanguage(ui_lang)
-  tagTranslations.load('node_modules/openstreetmap-tag-translations', ui_lang, function (err) {
-    if (err) {
-      alert('Error loading translations: ' + err)
-      return
-    }
-  })
 }
 
 function show (id, options, callback) {

src/language.js

@@ -0,0 +1,12 @@
+var tagTranslations = require('./tagTranslations')
+
+register_hook('init_callback', function (callback) {
+  tagTranslations.setTagLanguage(ui_lang)
+  tagTranslations.load('node_modules/openstreetmap-tag-translations', ui_lang, function (err) {
+    if (err) {
+      err = 'Error loading translations: ' + err
+    }
+
+    callback(err)
+  })
+})