static void Main(string[] args)
		{
			string[] urls = { "http://www.microsoft.com",
								"http://www.contoso.com",
								"http://www.msn.com",
								"http://msdn.microsoft.com",
								"http://mspress.microsoft.com" };

			AutoResetEvent[] waithandles = new AutoResetEvent[urls.Length];

			// Record the time before we start
			DateTime beginTime = DateTime.Now;

			// Retrieve each page
			for (int i = 0; i < urls.Length; i++)
			{
				waithandles[i] = new AutoResetEvent(false);
				PageSize ps = new PageSize(urls[i], waithandles[i], new ResultDelegate(ResultCallback));
                Thread t = new Thread(new ThreadStart(ps.GetPageSize));
                t.Name = "Thread" + (i + 1).ToString();
                t.Start();
				//ThreadPool.QueueUserWorkItem(GetPage, ti);
			}
				
			//Wait all the events
            WaitHandle.WaitAll(waithandles);

			// Display the elapsed time
			Console.WriteLine("Time elapsed: " + (DateTime.Now - beginTime).ToString());
			Console.WriteLine("Press a key to continue");
			Console.ReadKey();
		}
 static void ResultCallback(PageSize ps)
 {
     Console.WriteLine("{0}: {1}", ps.url, ps.bytes.ToString());
 }