title: Why does Firefox not pass all mouse wheel events to my javascript application?
body: <p>I'm using the protovis library (http://mbostock.github.com/protovis/) to draw a graph.<br> 
  I uploaded the code I'm using in case someone wants to take a look at it:<br>
  <a href="http://jsfiddle.net/zobel/brEAD/" rel="nofollow">http://jsfiddle.net/zobel/brEAD/</a></p>
  
  <p>Here is my problem: Under Firefox, when I use the mouse wheel to zoom in or out, some mouse wheel events are not captured by my application but by Firefox itself. The result is that i end up getting a mix of zooms and page scrolls. You can test this by shrinking the Firefox window until the scroll bar gets visible. <br>
  This problem does not occur under Opera. Why does it happen and how can I solve it?<br>
  Thanks a lot in advance.</p>