There is a handy website that will help you do it.And here is a link to the video at that point: <a href="http://www.youtube.com/watch?v=U2IFtkXofss&t=46m50s-JocelynReplyDeleteadelheidMay">http://www.youtube.com/watch?v=U2IFtkXofss&t=46m50s-JocelynReplyDeleteadelheidMay</a> 13, 2011 at 2:41 PMI linked to your wonderful blog in mine - hope he is OK.And yes, if the US puts its shoulders on this research, it could help!!