diff --git a/java/src/pm/Application.java b/java/src/pm/Application.java
index 4a39985..40ca543 100644
--- a/java/src/pm/Application.java
+++ b/java/src/pm/Application.java
@@ -19,5 +19,5 @@ public abstract class Application extends EventHandler implements Selectable {
     public void exit() {
         deactivate();
         stop();
-    }    
+    }
 }
\ No newline at end of file
diff --git a/java/src/pm/Worker.java b/java/src/pm/Worker.java
index 9de782c..e02c4b4 100644
--- a/java/src/pm/Worker.java
+++ b/java/src/pm/Worker.java
@@ -8,12 +8,15 @@ public abstract class Worker implements Runnable {
 
     protected static final boolean THREAD = true;
     protected static final int SLEEP = 100;
+    public static final int CHECK_ALIVE_INTERVAL = 1000;
 
     protected boolean running = false;
     protected boolean active = false;
+    protected boolean connected;
+    
 
     protected Object lock;
-
+    
     public void start(boolean thread) {
         running = true;
         if (thread) {
@@ -26,6 +29,8 @@ public abstract class Worker implements Runnable {
 
     public void start() {
         start(THREAD);
+        monitorConnection();
+        connected = false;
     }
 
     public void stop() {
@@ -89,4 +94,31 @@ public abstract class Worker implements Runnable {
     }
 
     protected abstract void work();
+    
+    public boolean connected() {
+        return connected;
+    }
+    
+    protected void monitorConnection() {
+        new Thread() {
+            protected long timestamp = System.currentTimeMillis();
+            
+            public void run() {
+                while (super.isAlive()) {
+                    if (timestamp + (2 * CHECK_ALIVE_INTERVAL) > System.currentTimeMillis()) {
+                        timestamp = System.currentTimeMillis();
+                        connected = true;
+                        log.debug("Het gaat nog helemaal goed");
+                    } else {
+                        log.debug("Het interval is overschreden");
+                        return;
+                    }
+                    try {
+                        Thread.sleep(CHECK_ALIVE_INTERVAL);
+                    } catch (InterruptedException e) {}
+                }
+                connected = false;
+            }
+        }.start();
+    }
 }
diff --git a/java/src/pm/selector/SelectButton.java b/java/src/pm/selector/SelectButton.java
index 813f821..3a39780 100644
--- a/java/src/pm/selector/SelectButton.java
+++ b/java/src/pm/selector/SelectButton.java
@@ -14,11 +14,14 @@ public class SelectButton<T extends Worker> extends JToggleButton implements Ite
 
     protected static final long serialVersionUID = 1L;
     protected T activatable;
+    
+    public static final int CHECK_ALIVE_INTERVAL = 1000;
 
     public SelectButton(T activatable, String title) {
         this.activatable = activatable;
         setText(title);
         addItemListener(this);
+        monitorApplication();
     }
 
     public void itemStateChanged(ItemEvent itemEvent) {
@@ -29,6 +32,21 @@ public class SelectButton<T extends Worker> extends JToggleButton implements Ite
         } else {
             System.out.println("Deselected");
             activatable.deactivate();
-        }   
+        }
+    }
+    
+    protected void monitorApplication() {
+        new Thread() {
+            public void run() {
+                while (super.isAlive()) {
+                    if (!activatable.connected()) {
+                        //log.debug("Nu moet het knopje uit gaan!");
+                    }
+                    try {
+                        Thread.sleep(CHECK_ALIVE_INTERVAL);
+                    } catch (InterruptedException e) {}
+                }
+            }
+        }.start();
     }
 }