diff --git a/src/org/hwo/fifo/FiFo.java b/src/org/hwo/fifo/FiFo.java
new file mode 100644
index 0000000..eaa8eac
--- /dev/null
+++ b/src/org/hwo/fifo/FiFo.java
@@ -0,0 +1,45 @@
+package org.hwo.fifo;
+
+import java.util.LinkedList;
+import java.util.List;
+
+public class FiFo<T> {
+
+	private LinkedList<T>	elements;
+	
+	public FiFo()
+	{
+		elements = new LinkedList<T>();
+	}
+	
+	public void push(T element)
+	{
+		elements.add(element);
+	}
+	
+	public T pull()
+	{
+		return elements.poll();
+	}
+	
+	public T peek()
+	{
+		return elements.peek();
+	}
+	
+	public List<T> getElements()
+	{
+		return elements;
+	}
+	
+	public boolean isEmpty()
+	{
+		return elements.isEmpty();
+	}
+	
+	public boolean hasElements()
+	{
+		return !elements.isEmpty();
+	}
+	
+}
diff --git a/src/org/hwo/tasklet/Tasklet.java b/src/org/hwo/tasklet/Tasklet.java
new file mode 100644
index 0000000..a493e40
--- /dev/null
+++ b/src/org/hwo/tasklet/Tasklet.java
@@ -0,0 +1,7 @@
+package org.hwo.tasklet;
+
+public interface Tasklet {
+
+	public void run(Object arg);
+	
+}
diff --git a/src/org/hwo/tasklet/TaskletThread.java b/src/org/hwo/tasklet/TaskletThread.java
new file mode 100644
index 0000000..2861c63
--- /dev/null
+++ b/src/org/hwo/tasklet/TaskletThread.java
@@ -0,0 +1,70 @@
+package org.hwo.tasklet;
+
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Stack;
+
+import org.hwo.fifo.FiFo;
+
+public class TaskletThread extends Thread {
+
+	private class QueuedTasklet
+	{
+		private Tasklet tasklet;
+		private Object argument;
+		
+		public QueuedTasklet(Tasklet tasklet,Object argument)
+		{
+			this.tasklet = tasklet;
+			this.argument = argument;
+		}
+	}
+	
+	private FiFo<QueuedTasklet> queuedTasklets = new FiFo<QueuedTasklet>();
+	
+	public TaskletThread() {
+		start();
+	}
+	
+	public void queue(Tasklet tasklet,Object arg)
+	{
+		synchronized (queuedTasklets) {
+			queuedTasklets.push(new QueuedTasklet(tasklet,arg));
+		}
+		queuedTasklets.notify();
+	}
+	
+	@Override
+	public void run() {
+		while (true)
+		{
+			QueuedTasklet queuedTasklet = null;
+			
+			synchronized (queuedTasklets) {
+				try {
+					queuedTasklets.wait(100);
+					queuedTasklet = queuedTasklets.pull();
+				} catch (InterruptedException e) {
+					e.printStackTrace();
+				}
+			}
+			
+			if (queuedTasklet != null)
+			{
+				try
+				{
+					queuedTasklet.tasklet.run(queuedTasklet.argument);
+				} catch (Exception ex)
+				{
+					System.err.println("Tasklet throwed Exception: " + ex.toString());
+					ex.printStackTrace();
+				}
+			}
+			
+			if (isInterrupted())
+				return;
+		}
+	}
+	
+	
+}
diff --git a/src/org/hwo/ui/shapes/Rectangle.java b/src/org/hwo/ui/shapes/Rectangle.java
new file mode 100644
index 0000000..23fa86a
--- /dev/null
+++ b/src/org/hwo/ui/shapes/Rectangle.java
@@ -0,0 +1,13 @@
+package org.hwo.ui.shapes;
+
+import java.awt.Polygon;
+
+public class Rectangle extends Polygon {
+
+	public Rectangle(int left,int top,int width,int height)
+	{
+		super(new int[]{left,left + width - 1,left + width - 1,left},new int[]{ top,top,top + height - 1,top + height - 1 },4);
+	}
+	
+	
+}
diff --git a/src/org/hwo/ui/shapes/Triangle.java b/src/org/hwo/ui/shapes/Triangle.java
index 407f6b2..af9bb15 100644
--- a/src/org/hwo/ui/shapes/Triangle.java
+++ b/src/org/hwo/ui/shapes/Triangle.java
@@ -9,5 +9,4 @@ public class Triangle extends Polygon {
 		super(new int[]{x1,x2,x3},new int[]{y1,y2,y3},3);
 	}
 	
-	
 }