This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
In a XSD, I have a huge set of complex elements where in I use 2 defined complex types. The defined complex types differ just by the value for the maxLength attribute. So I require that I can have one complex type instead of two, with a variable defined and value supplied to it when being referred.