dynamic linq queries

http://weblogs.asp.net/scottgu/archive/2008/01/07/dynamic-linq-part-1-using-the-linq-dynamic-query-library.aspx

- copy dynamic.cs into /App_code folder (get this file from: http://msdn.microsoft.com/en-us/vstudio//bb894665.aspx)
- insert top of code page: Using System.Linq.Dynamic;