diff --git a/teavm-classlib/src/test/java/org/teavm/classlib/java/util/HashtableTest.java b/teavm-classlib/src/test/java/org/teavm/classlib/java/util/HashtableTest.java
index 95a5581bb..569df25cd 100644
--- a/teavm-classlib/src/test/java/org/teavm/classlib/java/util/HashtableTest.java
+++ b/teavm-classlib/src/test/java/org/teavm/classlib/java/util/HashtableTest.java
@@ -157,7 +157,9 @@ public class HashtableTest {
 
         String okey, ckey;
         while (org.hasMoreElements()) {
-            assertTrue("Key comparison failed", (okey = org.nextElement()).equals(ckey = cpy.nextElement()));
+            okey = org.nextElement();
+            ckey = cpy.nextElement();
+            assertTrue("Key comparison failed", okey.equals(ckey));
             assertTrue("Value comparison failed", (htfull.get(okey)).equals(h.get(ckey)));
         }
         assertTrue("Copy has more keys than original", !cpy.hasMoreElements());
diff --git a/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java b/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java
index 3ee4f5a48..7793a0dc5 100644
--- a/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java
+++ b/teavm-dom/src/main/java/org/teavm/dom/browser/Window.java
@@ -15,7 +15,7 @@
  */
 package org.teavm.dom.browser;
 
-import org.teavm.dom.core.Document;
+import org.teavm.dom.html.HTMLDocument;
 import org.teavm.jso.JSGlobal;
 import org.teavm.jso.JSObject;
 import org.teavm.jso.JSProperty;
@@ -26,7 +26,7 @@ import org.teavm.jso.JSProperty;
  */
 public interface Window extends JSGlobal {
     @JSProperty
-    Document getDocument();
+    HTMLDocument getDocument();
 
     void alert(JSObject message);
 
diff --git a/teavm-dom/src/main/java/org/teavm/dom/core/Element.java b/teavm-dom/src/main/java/org/teavm/dom/core/Element.java
index f07a04ef6..d21f91f38 100644
--- a/teavm-dom/src/main/java/org/teavm/dom/core/Element.java
+++ b/teavm-dom/src/main/java/org/teavm/dom/core/Element.java
@@ -34,7 +34,7 @@ public interface Element extends Node {
 
     Attr removeAttributeNode(Attr oldAttr);
 
-    NodeList<Element> getElementsByTagName(String name);
+    NodeList<? extends Element> getElementsByTagName(String name);
 
     String getAttributeNS(String namespaceURI, String localName);
 
@@ -46,7 +46,7 @@ public interface Element extends Node {
 
     Attr setAttributeNodeNS(Attr newAttr);
 
-    NodeList<Element> getElementsByTagNameNS(String namespaceURI, String localName);
+    NodeList<? extends Element> getElementsByTagNameNS(String namespaceURI, String localName);
 
     boolean hasAttribute(String name);
 
diff --git a/teavm-dom/src/main/java/org/teavm/dom/core/NamedNodeMap.java b/teavm-dom/src/main/java/org/teavm/dom/core/NamedNodeMap.java
index b893cfa82..394127fa9 100644
--- a/teavm-dom/src/main/java/org/teavm/dom/core/NamedNodeMap.java
+++ b/teavm-dom/src/main/java/org/teavm/dom/core/NamedNodeMap.java
@@ -15,7 +15,7 @@
  */
 package org.teavm.dom.core;
 
-import org.teavm.jso.JSArray;
+import org.teavm.jso.JSArrayReader;
 import org.teavm.jso.JSObject;
 import org.teavm.jso.JSProperty;
 
@@ -23,7 +23,7 @@ import org.teavm.jso.JSProperty;
  *
  * @author Alexey Andreev
  */
-public interface NamedNodeMap<T extends Node> extends JSObject, JSArray<T> {
+public interface NamedNodeMap<T extends Node> extends JSObject, JSArrayReader<T> {
     T getNamedItem(String name);
 
     T setNamedItem(T arg);
diff --git a/teavm-dom/src/main/java/org/teavm/dom/core/NodeList.java b/teavm-dom/src/main/java/org/teavm/dom/core/NodeList.java
index 3f0ca46e5..f3a9fff6b 100644
--- a/teavm-dom/src/main/java/org/teavm/dom/core/NodeList.java
+++ b/teavm-dom/src/main/java/org/teavm/dom/core/NodeList.java
@@ -15,14 +15,14 @@
  */
 package org.teavm.dom.core;
 
-import org.teavm.jso.JSArray;
+import org.teavm.jso.JSArrayReader;
 import org.teavm.jso.JSProperty;
 
 /**
  *
  * @author Alexey Andreev
  */
-public interface NodeList<T extends Node> extends JSArray<T> {
+public interface NodeList<T extends Node> extends JSArrayReader<T> {
     T item(int index);
 
     @Override
diff --git a/teavm-dom/src/main/java/org/teavm/dom/css/CSSStyleDeclaration.java b/teavm-dom/src/main/java/org/teavm/dom/css/CSSStyleDeclaration.java
new file mode 100644
index 000000000..a96a1b257
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/css/CSSStyleDeclaration.java
@@ -0,0 +1,52 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.css;
+
+import org.teavm.jso.JSIndexer;
+import org.teavm.jso.JSObject;
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface CSSStyleDeclaration extends JSObject {
+    @JSProperty
+    String getCssText();
+
+    @JSProperty
+    void setCssText(String cssText);
+
+    @JSProperty
+    int getLength();
+
+    @JSIndexer
+    String item(int index);
+
+    String getPropertyValue(String property);
+
+    String getPropertyPriority(String property);
+
+    void setProperty(String property, String value);
+
+    void setProperty(String property, String value, String priority);
+
+    void setPropertyValue(String property, String value);
+
+    void setPropertyPriority(String property, String priority);
+
+    String removeProperty(String property);
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/css/ElementCSSInlineStyle.java b/teavm-dom/src/main/java/org/teavm/dom/css/ElementCSSInlineStyle.java
new file mode 100644
index 000000000..67ad3387a
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/css/ElementCSSInlineStyle.java
@@ -0,0 +1,28 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.css;
+
+import org.teavm.jso.JSObject;
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface ElementCSSInlineStyle extends JSObject {
+    @JSProperty
+    CSSStyleDeclaration getStyle();
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLBaseElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLBaseElement.java
new file mode 100644
index 000000000..d24e47c19
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLBaseElement.java
@@ -0,0 +1,35 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLBaseElement extends HTMLElement {
+    @JSProperty
+    String getHref();
+
+    @JSProperty
+    void setHref(String href);
+
+    @JSProperty
+    String getTarget();
+
+    void setTarget(String target);
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLDocument.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLDocument.java
new file mode 100644
index 000000000..3f1428f99
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLDocument.java
@@ -0,0 +1,35 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+import org.teavm.dom.core.Document;
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLDocument extends Document {
+    @JSProperty
+    @Override
+    HTMLHtmlElement getDocumentElement();
+
+    @Override
+    HTMLElement createElement(String tagName);
+
+    @Override
+    HTMLElement getElementById(String elementId);
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLElement.java
new file mode 100644
index 000000000..99b313a5a
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLElement.java
@@ -0,0 +1,83 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+import org.teavm.dom.core.Element;
+import org.teavm.dom.core.NodeList;
+import org.teavm.dom.css.ElementCSSInlineStyle;
+import org.teavm.dom.events.EventTarget;
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLElement extends Element, ElementCSSInlineStyle, EventTarget {
+    @Override
+    @JSProperty
+    NodeList<? extends HTMLElement> getElementsByTagName(String name);
+
+    @JSProperty
+    String getTitle();
+
+    @JSProperty
+    void setTitle(String title);
+
+    @JSProperty
+    String getLang();
+
+    @JSProperty
+    void setLang(String lang);
+
+    @JSProperty
+    boolean isTranslate();
+
+    @JSProperty
+    void setTranslate(boolean translate);
+
+    @JSProperty
+    String getDir();
+
+    @JSProperty
+    void setDir(String dir);
+
+    @JSProperty
+    boolean isHidden();
+
+    @JSProperty
+    void setHidden(boolean hidden);
+
+    void click();
+
+    @JSProperty
+    int getTabIndex();
+
+    @JSProperty
+    void setTabIndex(int tabIndex);
+
+    void focus();
+
+    void blur();
+
+    @JSProperty
+    String getAccessKey();
+
+    @JSProperty
+    void setAccessKey(String accessKey);
+
+    @JSProperty
+    String getAccessKeyLabel();
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLHeadElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLHeadElement.java
new file mode 100644
index 000000000..eca363d46
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLHeadElement.java
@@ -0,0 +1,23 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLHeadElement extends HTMLElement {
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLHtmlElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLHtmlElement.java
new file mode 100644
index 000000000..2a2b9ce27
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLHtmlElement.java
@@ -0,0 +1,23 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLHtmlElement extends HTMLElement {
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLLinkElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLLinkElement.java
new file mode 100644
index 000000000..d66519872
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLLinkElement.java
@@ -0,0 +1,60 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLLinkElement extends HTMLElement {
+    @JSProperty
+    String getHref();
+
+    @JSProperty
+    void setHref(String href);
+
+    @JSProperty
+    String getCrossOrigin();
+
+    @JSProperty
+    void setCrossOrigin(String crossOrigin);
+
+    @JSProperty
+    String getRel();
+
+    @JSProperty
+    void setRel(String rel);
+
+    @JSProperty
+    String getMedia();
+
+    @JSProperty
+    void setMedia(String media);
+
+    @JSProperty
+    String getHreflang();
+
+    @JSProperty
+    void setHreflang(String hreflang);
+
+    @JSProperty
+    String getType();
+
+    @JSProperty
+    void setType(String property);
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLMetaElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLMetaElement.java
new file mode 100644
index 000000000..0e5db9032
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLMetaElement.java
@@ -0,0 +1,42 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLMetaElement extends HTMLElement {
+    @JSProperty
+    String getName();
+
+    @JSProperty
+    void setName(String name);
+
+    @JSProperty
+    String getHttpEquiv();
+
+    @JSProperty
+    void setHttpEquiv(String httpEquiv);
+
+    @JSProperty
+    String getContent();
+
+    @JSProperty
+    void setContent(String content);
+}
diff --git a/teavm-dom/src/main/java/org/teavm/dom/html/HTMLTitleElement.java b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLTitleElement.java
new file mode 100644
index 000000000..945a4a0f8
--- /dev/null
+++ b/teavm-dom/src/main/java/org/teavm/dom/html/HTMLTitleElement.java
@@ -0,0 +1,30 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.dom.html;
+
+import org.teavm.jso.JSProperty;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface HTMLTitleElement extends HTMLElement {
+    @JSProperty
+    String getText();
+
+    @JSProperty
+    void setText(String text);
+}
diff --git a/teavm-jso/src/main/java/org/teavm/jso/JSArray.java b/teavm-jso/src/main/java/org/teavm/jso/JSArray.java
index 882867210..44049df4d 100644
--- a/teavm-jso/src/main/java/org/teavm/jso/JSArray.java
+++ b/teavm-jso/src/main/java/org/teavm/jso/JSArray.java
@@ -19,15 +19,59 @@ package org.teavm.jso;
  *
  * @author Alexey Andreev
  */
-public interface JSArray<T extends JSObject> extends JSObject {
-    @JSProperty
-    int getLength();
-
-    @JSIndexer
-    T get(int index);
-
+public interface JSArray<T extends JSObject> extends JSArrayReader<T> {
     @JSIndexer
     void set(int index, T value);
-    
-    void push(T value);
+
+    int push(T a);
+
+    int push(T a, T b);
+
+    int push(T a, T b, T c);
+
+    int push(T a, T b, T c, T d);
+
+    T shift();
+
+    String join(String separator);
+
+    String join();
+
+    JSArray<T> concat(JSArray<T> a);
+
+    JSArray<T> concat(JSArray<T> a, JSArray<T> b);
+
+    JSArray<T> concat(JSArray<T> a, JSArray<T> b, JSArray<T> c);
+
+    JSArray<T> concat(JSArray<T> a, JSArray<T> b, JSArray<T> c, JSArray<T> d);
+
+    T pop();
+
+    int unshift(T a);
+
+    int unshift(T a, T b);
+
+    int unshift(T a, T b, T c);
+
+    int unshift(T a, T b, T c, T d);
+
+    JSArray<T> slice(int start);
+
+    JSArray<T> slice(int start, int end);
+
+    JSArray<T> reverse();
+
+    JSArray<T> sort(JSSortFunction<T> function);
+
+    JSArray<T> sort();
+
+    JSArray<T> splice(int start, int count);
+
+    JSArray<T> splice(int start, int count, T a);
+
+    JSArray<T> splice(int start, int count, T a, T b);
+
+    JSArray<T> splice(int start, int count, T a, T b, T c);
+
+    JSArray<T> splice(int start, int count, T a, T b, T c, T d);
 }
diff --git a/teavm-jso/src/main/java/org/teavm/jso/JSArrayReader.java b/teavm-jso/src/main/java/org/teavm/jso/JSArrayReader.java
new file mode 100644
index 000000000..f5291774d
--- /dev/null
+++ b/teavm-jso/src/main/java/org/teavm/jso/JSArrayReader.java
@@ -0,0 +1,28 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.jso;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+public interface JSArrayReader<T extends JSObject> extends JSObject {
+    @JSProperty
+    int getLength();
+
+    @JSIndexer
+    T get(int index);
+}
diff --git a/teavm-jso/src/main/java/org/teavm/jso/JSSortFunction.java b/teavm-jso/src/main/java/org/teavm/jso/JSSortFunction.java
new file mode 100644
index 000000000..fd6891aaf
--- /dev/null
+++ b/teavm-jso/src/main/java/org/teavm/jso/JSSortFunction.java
@@ -0,0 +1,25 @@
+/*
+ *  Copyright 2014 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.jso;
+
+/**
+ *
+ * @author Alexey Andreev <konsoletyper@gmail.com>
+ */
+@JSFunctor
+public interface JSSortFunction<T extends JSObject> {
+    int compare(T a, T b);
+}