diff --git a/src/main/scala/plugin/PluginSystem.scala b/src/main/scala/plugin/PluginSystem.scala
index cabe833..18c81f5 100644
--- a/src/main/scala/plugin/PluginSystem.scala
+++ b/src/main/scala/plugin/PluginSystem.scala
@@ -3,40 +3,71 @@
 import app.Context
 import javax.servlet.http.{HttpServletResponse, HttpServletRequest}
 import javax.script.ScriptEngineManager
+import scala.collection.mutable.ListBuffer
+import org.slf4j.LoggerFactory
+import jdk.nashorn.api.scripting.ScriptObjectMirror
 
 /**
  * Provides extension points to plug-ins.
  */
 object PluginSystem {
 
-  private val repositoryMenuList = scala.collection.mutable.ListBuffer[RepositoryMenu]()
-  private val globalMenuList = scala.collection.mutable.ListBuffer[GlobalMenu]()
-  private val actionList = scala.collection.mutable.ListBuffer[Action]()
+  private val logger = LoggerFactory.getLogger(PluginSystem.getClass)
+
+  private val repositoryMenuList   = ListBuffer[RepositoryMenu]()
+  private val globalMenuList       = ListBuffer[GlobalMenu]()
+  private val repositoryActionList = ListBuffer[Action]()
+  private val globalActionList     = ListBuffer[Action]()
 
   case class GlobalMenu(label: String, url: String, icon: String, condition: Context => Boolean)
   case class RepositoryMenu(label: String, name: String, url: String, icon: String, condition: Context => Boolean)
   case class Action(path: String, function: (HttpServletRequest, HttpServletResponse) => Any)
 
-  def addRepositoryMenu(label: String, name: String, url: String, icon: String = "")(condition: Context => Boolean): Unit = {
+  def addRepositoryMenu(label: String, name: String, url: String, icon: String)(condition: Context => Boolean): Unit = {
     repositoryMenuList += RepositoryMenu(label, name, url, icon, condition)
   }
 
-  def addGlobalMenu(label: String, url: String, icon: String = "")(condition: Context => Boolean): Unit = {
+  def addRepositoryMenu(label: String, name: String, url: String, icon: String, condition: ScriptObjectMirror): Unit = {
+    repositoryMenuList += RepositoryMenu(label, name, url, icon, (context) => condition.call(this, context).asInstanceOf[Boolean])
+  }
+
+  def addGlobalMenu(label: String, url: String, icon: String)(condition: Context => Boolean): Unit = {
     globalMenuList += GlobalMenu(label, url, icon, condition)
   }
 
-  def addAction(path: String)(function: (HttpServletRequest, HttpServletResponse) => Any): Unit = {
-    actionList += Action(path, function)
+  def addGlobalMenu(label: String, url: String, icon: String, condition: ScriptObjectMirror): Unit = {
+    globalMenuList += GlobalMenu(label, url, icon, (context) => condition.call(this, context).asInstanceOf[Boolean])
+  }
+
+  def addGlobalAction(path: String)(function: (HttpServletRequest, HttpServletResponse) => Any): Unit = {
+    globalActionList += Action(path, function)
+  }
+
+  def addGlobalAction(path: String, function: ScriptObjectMirror): Unit = {
+    globalActionList += Action(path, (request, response) => function.call(this, request, response))
+  }
+
+  def addRepositoryAction(path: String)(function: (HttpServletRequest, HttpServletResponse) => Any): Unit = {
+    repositoryActionList += Action(path, function)
+  }
+
+  def addRepositoryAction(path: String, function: ScriptObjectMirror): Unit = {
+    repositoryActionList += Action(path, (request, response) => function.call(this, request, response))
   }
 
   def evaluateJavaScript(script: String): Any = {
     val engine = new ScriptEngineManager().getEngineByName("JavaScript")
-    engine.eval(script)
+    logger.debug("Script: " + script)
+    engine.put("PluginSystem", this)
+    val result = engine.eval(script)
+    logger.debug("Result: " + result)
+    result
   }
 
-  lazy val repositoryMenus: List[RepositoryMenu] = repositoryMenuList.toList
-  lazy val globalMenus: List[GlobalMenu] = globalMenuList.toList
-  lazy val actions: List[Action] = actionList.toList
+  def repositoryMenus: List[RepositoryMenu] = repositoryMenuList.toList
+  def globalMenus: List[GlobalMenu] = globalMenuList.toList
+  def repositoryActions: List[Action] = repositoryActionList.toList
+  def globalActions: List[Action] = globalActionList.toList
 
   // TODO This is a test
   addGlobalMenu("Google", "http://www.google.co.jp/", "data:image/png;base64,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")
@@ -45,7 +76,7 @@
   addRepositoryMenu("Board", "board", "/board", "data:image/png;base64,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")
     { context => true}
 
-  addAction("/hello"){ (request, response) =>
+  addGlobalAction("/hello"){ (request, response) =>
     "Hello World!"
   }
 
diff --git a/src/main/scala/servlet/PluginActionInvokeFilter.scala b/src/main/scala/servlet/PluginActionInvokeFilter.scala
index 15be40c..a4cc48e 100644
--- a/src/main/scala/servlet/PluginActionInvokeFilter.scala
+++ b/src/main/scala/servlet/PluginActionInvokeFilter.scala
@@ -18,7 +18,7 @@
     (req, res) match {
       case (request: HttpServletRequest, response: HttpServletResponse) => {
         val path = req.asInstanceOf[HttpServletRequest].getRequestURI
-        val action = plugin.PluginSystem.actions.find(_.path == path)
+        val action = plugin.PluginSystem.globalActions.find(_.path == path)
 
         if(action.isDefined){
           val result = action.get.function(request, response)
diff --git a/src/main/twirl/admin/script.scala.html b/src/main/twirl/admin/script.scala.html
index 604b138..9707c1d 100644
--- a/src/main/twirl/admin/script.scala.html
+++ b/src/main/twirl/admin/script.scala.html
@@ -3,7 +3,7 @@
 @import view.helpers._
 @html.main("JavaScript Console"){
   @menu("script"){
-    <form action="@path/admin/script" method="POST">
+    <form method="POST">
       <div class="box">
         <div class="box-header">JavaScript Console</div>
         <div class="box-content">
@@ -11,7 +11,7 @@
         </div>
       </div>
       <fieldset>
-        <input type="submit" id="evaluate" class="btn btn-success" value="Evaluate"/>
+        <input type="button" id="evaluate" class="btn btn-success" value="Evaluate"/>
       </fieldset>
     </form>
   }
@@ -21,12 +21,15 @@
 $(function(){
   var editor = ace.edit("editor");
   editor.setTheme("ace/theme/monokai");
+  editor.getSession().setMode("ace/mode/javascript");
 
   $('#evaluate').click(function(){
     $.post('@path/admin/script', {
       script: editor.getValue()
     }, function(data){
-      console.log(data);
+      alert('Success: ' + data);
+    }).fail(function(error){
+      alert(error.statusText);
     });
   });
 });