Issue with using a Single Storyboard on Multiple Elements
Following on from my previous post, there is a little gotcha when using a single storyboard for multiple elements in the manner I showed.
If your storyboard has not finished completely and your javascript tries to start it again (because some event has fired or whatever) on a second element, Silverlight will throw an exception. This is essentially because you are trying to start a storyboard that is already started which causes Silverlight to give it's little cough. ;)
In my instance this has forced me to write seperate storyboards to overcome this issue but depending on your situation and the events you're firing your storyboards from it may not be necessary.
Have fun!