在这温馨的日子里，祝各位朋友圣诞快乐~
源文件：
http://cid-3e15d91acc4385a8.skydrive.live.com/embedicon.aspx/.Public/Silverlight/MerryChristmas.zip
参考资料：
http://www.johnbruin.net/index.php/2009/12/14/silverlight-snow-storm-merry-x-mas-happy-new-year/
http://www.andybeaulieu.com/Home/tabid/67/EntryID/160/Default.aspx