diff --git a/src/components/script/dom/document.rs b/src/components/script/dom/document.rs
index d6165b7b85e..5dbd8b1194b 100644
--- a/src/components/script/dom/document.rs
+++ b/src/components/script/dom/document.rs
@@ -431,6 +431,44 @@ impl Document {
         })
     }
 
+    pub fn Images(&self) -> JS<HTMLCollection> {
+        self.createHTMLCollection(|elem| "img" == elem.tag_name)
+    }
+
+    pub fn Embeds(&self) -> JS<HTMLCollection> {
+        self.createHTMLCollection(|elem| "embed" == elem.tag_name)
+    }
+
+    pub fn Plugins(&self) -> JS<HTMLCollection> {
+        self.Embeds()
+    }
+
+    pub fn Links(&self) -> JS<HTMLCollection> {
+        self.createHTMLCollection(|elem| {
+            ("a" == elem.tag_name || "area" == elem.tag_name) &&
+            elem.get_attribute(Null, "href").is_some()
+        })
+    }
+
+    pub fn Forms(&self) -> JS<HTMLCollection> {
+        self.createHTMLCollection(|elem| "form" == elem.tag_name)
+    }
+
+    pub fn Scripts(&self) -> JS<HTMLCollection> {
+        self.createHTMLCollection(|elem| "script" == elem.tag_name)
+    }
+
+    pub fn Anchors(&self) -> JS<HTMLCollection> {
+        self.createHTMLCollection(|elem| {
+            "a" == elem.tag_name && elem.get_attribute(Null, "name").is_some()
+        })
+    }
+
+    pub fn Applets(&self) -> JS<HTMLCollection> {
+        // FIXME: This should be return OBJECT elements containing applets.
+        self.createHTMLCollection(|elem| "applet" == elem.tag_name)
+    }
+
     pub fn createHTMLCollection(&self, callback: |elem: &Element| -> bool) -> JS<HTMLCollection> {
         let mut elements = ~[];
         match self.GetDocumentElement() {
diff --git a/src/components/script/dom/htmldocument.rs b/src/components/script/dom/htmldocument.rs
index 7b967d68bea..64bed6c211c 100644
--- a/src/components/script/dom/htmldocument.rs
+++ b/src/components/script/dom/htmldocument.rs
@@ -8,10 +8,8 @@ use dom::bindings::js::JS;
 use dom::bindings::utils::{Reflectable, Reflector};
 use dom::document::{Document, HTML, HTMLDocumentTypeId};
 use dom::eventtarget::{EventTarget, NodeTargetTypeId};
-use dom::htmlcollection::HTMLCollection;
 use dom::node::DocumentNodeTypeId;
 use dom::window::Window;
-use servo_util::namespace::Null;
 
 use extra::url::Url;
 
@@ -42,46 +40,6 @@ impl HTMLDocument {
     }
 }
 
-impl HTMLDocument {
-    pub fn Images(&self) -> JS<HTMLCollection> {
-        self.parent.createHTMLCollection(|elem| "img" == elem.tag_name)
-    }
-
-    pub fn Embeds(&self) -> JS<HTMLCollection> {
-        self.parent.createHTMLCollection(|elem| "embed" == elem.tag_name)
-    }
-
-    pub fn Plugins(&self) -> JS<HTMLCollection> {
-        self.Embeds()
-    }
-
-    pub fn Links(&self) -> JS<HTMLCollection> {
-        self.parent.createHTMLCollection(|elem| {
-            ("a" == elem.tag_name || "area" == elem.tag_name) &&
-            elem.get_attribute(Null, "href").is_some()
-        })
-    }
-
-    pub fn Forms(&self) -> JS<HTMLCollection> {
-        self.parent.createHTMLCollection(|elem| "form" == elem.tag_name)
-    }
-
-    pub fn Scripts(&self) -> JS<HTMLCollection> {
-        self.parent.createHTMLCollection(|elem| "script" == elem.tag_name)
-    }
-
-    pub fn Anchors(&self) -> JS<HTMLCollection> {
-        self.parent.createHTMLCollection(|elem| {
-            "a" == elem.tag_name && elem.get_attribute(Null, "name").is_some()
-        })
-    }
-
-    pub fn Applets(&self) -> JS<HTMLCollection> {
-        // FIXME: This should be return OBJECT elements containing applets.
-        self.parent.createHTMLCollection(|elem| "applet" == elem.tag_name)
-    }
-}
-
 impl Reflectable for HTMLDocument {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.parent.reflector()
diff --git a/src/components/script/dom/webidls/Document.webidl b/src/components/script/dom/webidls/Document.webidl
index feb312c559d..daa91f540fb 100644
--- a/src/components/script/dom/webidls/Document.webidl
+++ b/src/components/script/dom/webidls/Document.webidl
@@ -45,4 +45,13 @@ partial interface Document {
            attribute HTMLElement? body;
   readonly attribute HTMLHeadElement? head;
   /*NodeList*/ HTMLCollection getElementsByName(DOMString elementName);
+
+  readonly attribute HTMLCollection images;
+  readonly attribute HTMLCollection embeds;
+  readonly attribute HTMLCollection plugins;
+  readonly attribute HTMLCollection links;
+  readonly attribute HTMLCollection forms;
+  readonly attribute HTMLCollection scripts;
+  readonly attribute HTMLCollection anchors;
+  readonly attribute HTMLCollection applets;
 };
diff --git a/src/components/script/dom/webidls/HTMLDocument.webidl b/src/components/script/dom/webidls/HTMLDocument.webidl
index b899a46678f..464d771df62 100644
--- a/src/components/script/dom/webidls/HTMLDocument.webidl
+++ b/src/components/script/dom/webidls/HTMLDocument.webidl
@@ -5,13 +5,4 @@
  */
 
 /* http://www.whatwg.org/specs/web-apps/current-work/#the-document-object */
-interface HTMLDocument : Document {
-  readonly attribute HTMLCollection images;
-  readonly attribute HTMLCollection embeds;
-  readonly attribute HTMLCollection plugins;
-  readonly attribute HTMLCollection links;
-  readonly attribute HTMLCollection forms;
-  readonly attribute HTMLCollection scripts;
-  readonly attribute HTMLCollection anchors;
-  readonly attribute HTMLCollection applets;
-};
+interface HTMLDocument : Document {};