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+====== Shake ======
+This sample offers an OnShake function using the accelerometer.
+<code JavaScript OnShake.js>
+var lastx,lasty,lastz,lastms
+function OnStart()
+{
+  var lay = app.CreateLayout( "Linear", "VCenter,FillXY" );
+  var txt = app.CreateText( "Shake test" );
+  lay.AddChild( txt );
+  app.AddLayout( lay );
+  var sns = app.CreateSensor( "Accelerometer" );
+  sns.SetOnChange( sns_OnChange );
+  sns.Start();
+}
+function sns_OnChange( x, y, z, time )
+{
+  try
+  {
+     var diffms,speed;
+     if(lastx!==undefined)
+     {
+       diffms=time-lastms;
+       speed = Math.abs(x+y+z-lastx-lasty-lastz) / diffms * 10000;
+       if(speed>800) OnShake(speed/800);
+     }
+     lastx=x;
+     lasty=y;
+     lastz=z;
+     lastms=time;
+  }
+  catch(e) {}
+}
+function OnShake(speed)
+{
+   var msg = "Shake\n"+speed.toFixed(2);
+   app.ShowPopup(msg,"Short");
+}
+</code>

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