diff -r 15f9f43bdf5b -r cf9ba1d883c5 ko-bck2brwsr/src/main/java/org/apidesign/html/ko2brwsr/BrwsrCtxImpl.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ko-bck2brwsr/src/main/java/org/apidesign/html/ko2brwsr/BrwsrCtxImpl.java	Tue May 28 13:31:42 2013 +0200
@@ -0,0 +1,129 @@
+/**
+ * HTML via Java(tm) Language Bindings
+ * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details. apidesign.org
+ * designates this particular file as subject to the
+ * "Classpath" exception as provided by apidesign.org
+ * in the License file that accompanied this code.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. Look for COPYING file in the top folder.
+ * If not, see http://wiki.apidesign.org/wiki/GPLwithClassPathException
+ */
+package org.apidesign.html.ko2brwsr;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import net.java.html.BrwsrCtx;
+import org.apidesign.html.context.spi.Contexts;
+import org.apidesign.html.json.spi.FunctionBinding;
+import org.apidesign.html.json.spi.JSONCall;
+import org.apidesign.html.json.spi.PropertyBinding;
+import org.apidesign.html.json.spi.Technology;
+import org.apidesign.html.json.spi.Transfer;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+final class BrwsrCtxImpl implements Technology<Object>, Transfer {
+    private BrwsrCtxImpl() {}
+    
+    public static final BrwsrCtxImpl DEFAULT = new BrwsrCtxImpl();
+    
+    @Override
+    public void extract(Object obj, String[] props, Object[] values) {
+        ConvertTypes.extractJSON(obj, props, values);
+    }
+
+    @Override
+    public void loadJSON(final JSONCall call) {
+        class R implements Runnable {
+            Object[] arr = { null };
+            @Override
+            public void run() {
+                call.notifySuccess(arr[0]);
+            }
+        }
+        R r = new R();
+        if (call.isJSONP()) {
+            String me = ConvertTypes.createJSONP(r.arr, r);
+            ConvertTypes.loadJSONP(call.composeURL(me), me);
+        } else {
+            String data = null;
+            if (call.isDoOutput()) {
+                try {
+                    ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                    call.writeData(bos);
+                    data = new String(bos.toByteArray(), "UTF-8");
+                } catch (IOException ex) {
+                    call.notifyError(ex);
+                }
+            }
+            ConvertTypes.loadJSON(call.composeURL(null), r.arr, r, call.getMethod(), data);
+        }
+    }
+
+    @Override
+    public Object wrapModel(Object model) {
+        return model;
+    }
+
+    @Override
+    public void bind(PropertyBinding b, Object model, Object data) {
+        Knockout.bind(data, b, b.getPropertyName(), 
+            "getValue__Ljava_lang_Object_2", 
+            b.isReadOnly() ? null : "setValue__VLjava_lang_Object_2", 
+            false, false
+        );
+    }
+
+    @Override
+    public void valueHasMutated(Object data, String propertyName) {
+        Knockout.valueHasMutated(data, propertyName);
+    }
+
+    @Override
+    public void expose(FunctionBinding fb, Object model, Object d) {
+        Knockout.expose(d, fb, fb.getFunctionName(), "call__VLjava_lang_Object_2Ljava_lang_Object_2");
+    }
+
+    @Override
+    public void applyBindings(Object data) {
+        Knockout.applyBindings(data);
+    }
+
+    @Override
+    public Object wrapArray(Object[] arr) {
+        return arr;
+    }
+
+    @Override
+    public <M> M toModel(Class<M> modelClass, Object data) {
+        return modelClass.cast(data);
+    }
+
+    @Override
+    public Object toJSON(InputStream is) throws IOException {
+        StringBuilder sb = new StringBuilder();
+        InputStreamReader r = new InputStreamReader(is);
+        for (;;) {
+            int ch = r.read();
+            if (ch == -1) {
+                break;
+            }
+            sb.append((char)ch);
+        }
+        return ConvertTypes.parse(sb.toString());
+    }
+}