fixes #1786

app/assets/javascripts/application.js

@@ -2,6 +2,7 @@
 //= require jquery-ui-1.10.2.min.js
 //= require jquery.hotkeys.js
 //= require jquery.timeout.js
+//= require jquery-ui-autocomplete-custom.js
 //= require rails.js
 //= require common.js
 //= require_self

app/assets/javascripts/posts.js

@@ -69,7 +69,7 @@
       }
     });
 
-    $fields.on("autocompleteopen", function() {
+    $fields.on("autocompleteselect", function() {
       Danbooru.autocompleting = true;
     });