title: Is there any convinient way that i can deepclone 'style' instance in silverlight?
body: <p>if a style is used, it can not be modified agaign. so i need a clone method. but its hard to implement.</p>
  
  <p>what i want to do is implementing a cascading 'style' mechanism. for example, i set two style to the same frameworkelement. the same property of latter style will override the former one, while the different property remain unchanged.
  but if i set the style property of the frameworkelement twice directly, the 1st style will be gone. so i use the baseon property of style class to do that. but now come across another problem, the style can not be modified after it's been set to a frameworkelement. 
  so now i need a clone method.</p>