diff --git a/stringoverrides.module b/stringoverrides.module
index d613150..dd141e0 100644
--- a/stringoverrides.module
+++ b/stringoverrides.module
@@ -98,3 +98,36 @@ function stringoverrides_theme() {
     ),
   );
 }
+
+function stringoverrides_js_alter(&$javascript) {
+  global $language;
+  $translations = variable_get('locale_custom_strings_' . $language->language);
+  if (empty($translations['js'])) {
+    return;
+  }
+  $translations = $translations['js'];
+
+  // Construct the JavaScript file, if there are translations.
+  $data = "Drupal.locale = { ";
+  $data .= "'strings': " . drupal_json_encode($translations) . " };";
+  $data_hash = drupal_hash_base64($data);
+  // Construct the filepath where JS translation files are stored.
+  // There is (on purpose) no front end to edit that variable.
+  $dir = 'public://' . variable_get('locale_js_directory', 'languages');
+
+  // Only create a new file if the content has changed or the original file got
+  // lost.
+  $dest = $dir . '/' . $language->language . '_' . $data_hash . '.js';
+  if (!file_exists($dest)) {
+    // Ensure that the directory exists and is writable, if possible.
+    file_prepare_directory($dir, FILE_CREATE_DIRECTORY);
+    // Save the file.
+    if (file_unmanaged_save_data($data, $dest)) {
+    }
+    else {
+    }
+  }
+  if (file_exists($dest)) {
+    $javascript[$dest] = drupal_js_defaults($dest);
+  }
+}