moved stylesheets and javascripts to assets

app/assets/javascripts/favorites.js

@@ -0,0 +1,27 @@
+(function() {
+  Danbooru.Favorite = {};
+  
+  Danbooru.Favorite.initialize_all = function() {
+    this.hide_or_show_add_to_favorites_link();
+  }
+  
+  Danbooru.Favorite.hide_or_show_add_to_favorites_link = function() {
+    var favorites = Danbooru.meta("favorites");
+    var current_user_id = Danbooru.meta("current-user-id");
+    if (current_user_id == "") {
+      $("a#add-to-favorites").hide();
+      $("a#remove-from-favorites").hide();
+      return;
+    }
+    var regexp = new RegExp("\\bfav:" + current_user_id + "\\b");
+    if ((favorites != undefined) && (favorites.match(regexp))) {
+      $("a#add-to-favorites").hide();
+    } else {
+      $("a#remove-from-favorites").hide();      
+    }
+  }
+})();
+
+$(document).ready(function() {
+  Danbooru.Favorite.initialize_all();
+});