<Shell xmlns="http://www.eclipse.org/xwt/presentation"
	xmlns:x="http://www.eclipse.org/xwt"
	name="window"
	>
	<Shell.layout>
		<GridLayout numColumns="1"/>
	</Shell.layout>	
	<Label name="labelTarget" text="Int the animation"/>
	<Button name="startButton" text="Start Animation">
	  <Button.triggers>
	    <!-- Begin the Storyboard -->
	    <EventTrigger routedEvent="SelectionEvent">
	      <BeginStoryboard name="MyBeginStoryboard">
	        <Storyboard>
	          <IntAnimation
	             targetName="window"
	             targetProperty="alpha" 
	               duration="0:0:3" from="0" to="255" />
	        </Storyboard>
	      </BeginStoryboard>
	    </EventTrigger>
      </Button.triggers>
	</Button>
</Shell>