Hint elementBF?=

 This example ... 

 <svg xmlns="http://www.w3.org/2000/svg" version="1.2">
  <circle cx="50" cy="50" r="25" fill="red" tooltip="enable">
    <title>The target area</title>
    <hint>Click here to start the animation</hint>
  </circle>
</svg>

 It's ok?¿?¿? 

 I have Adobe Viewer 6 and this example not rule... :(
 The tooltip doesn't displayed...