diff -r 000000000000 -r 615c4158fbbb ide/debugger/src/main/java/org/apidesign/bck2brwsr/debugger/DebugBck2Brwsr.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ide/debugger/src/main/java/org/apidesign/bck2brwsr/debugger/DebugBck2Brwsr.java	Sat Mar 30 07:55:27 2013 +0100
@@ -0,0 +1,101 @@
+/**
+ * Back 2 Browser Bytecode Translator
+ * Copyright (C) 2012 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.
+ *
+ * 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://opensource.org/licenses/GPL-2.0.
+ */
+package org.apidesign.bck2brwsr.debugger;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.net.MalformedURLException;
+import java.net.URL;
+import org.netbeans.api.debugger.Session;
+import org.netbeans.api.project.Project;
+import org.netbeans.modules.web.browser.api.BrowserSupport;
+import org.netbeans.modules.web.browser.api.WebBrowser;
+import org.netbeans.modules.web.browser.api.WebBrowsers;
+import org.netbeans.modules.web.webkit.debugging.api.WebKitDebugging;
+import org.netbeans.modules.web.webkit.debugging.spi.netbeansdebugger.NetBeansJavaScriptDebuggerFactory;
+import org.openide.awt.ActionID;
+import org.openide.awt.ActionReference;
+import org.openide.awt.ActionRegistration;
+import org.openide.awt.HtmlBrowser;
+import org.openide.util.Exceptions;
+import org.openide.util.Lookup;
+
+/**
+ *
+ * @author Jaroslav Tulach <jtulach@netbeans.org>
+ */
+@ActionID(category = "Debug", id = "org.apidesign.bck2brwsr.Debug")
+@ActionRegistration(displayName = "Bck2brwsr debugger", asynchronous = true)
+@ActionReference(path = "Menu/DebugProject", position = 33333)
+public final class DebugBck2Brwsr implements ActionListener {
+    private final Project project;
+    
+    public DebugBck2Brwsr(Project p) {
+        this.project = p;
+    }
+    
+
+    @Override
+    public void actionPerformed(ActionEvent e) {
+        try {
+            URL url = new URL("http://localhost:8383/HTML5Application/index.html");
+            BrowserSupport.getDefaultEmbedded().load(url, project.getProjectDirectory());
+            /*
+            for (WebBrowser web : WebBrowsers.getInstance().getAll(true)) {
+            HtmlBrowser.Impl impl = web.getHtmlBrowserFactory().createHtmlBrowserImpl();
+            WebKitDebugging wkd = impl.getLookup().lookup(WebKitDebugging.class);
+            if (wkd != null) {
+            impl.setURL(url);
+            Session session = startSession(wkd, project.getLookup());
+            System.err.println("debugging : " + session.getCurrentLanguage());
+            return;
+            }
+            //            Collection<? extends Object> res = pane.getLookup().lookupAll(Object.class);
+            System.err.println("res: " + wkd);
+            }
+             */
+        } catch (MalformedURLException ex) {
+            Exceptions.printStackTrace(ex);
+        }
+    }
+
+    private static Session startSession(WebKitDebugging wkd, Lookup context) {
+        final String sevenThree = "org.netbeans.modules.web.webkit.debugging.spi.netbeansdebugger.NetBeansJavaScriptDebuggerFactory";
+        final String sevenFour = "org.netbeans.modules.web.webkit.debugging.spi.JavaScriptDebuggerFactory";
+        
+        Class<?> cls;
+        try {
+            cls = Class.forName(sevenFour);
+        } catch (ClassNotFoundException ex1) {
+            try {
+                cls = Class.forName(sevenThree);
+            } catch (ClassNotFoundException ex) {
+                throw new IllegalStateException("Can't start debug session", ex);
+            }
+        }
+        
+        Object inst = Lookup.getDefault().lookup(cls);
+
+        try {
+            java.lang.reflect.Method m = cls.getMethod("createDebuggingSession", WebKitDebugging.class, Lookup.class);
+            return (Session)m.invoke(inst, wkd, context);
+        } catch (Exception ex) {
+            throw new IllegalStateException(ex);
+        }
+    }
+}