Please keep the links coming at the same rate (unless the workload for you is unfairly high.) I love the links... enormous value! It may take me several days to check them out, but they are terrific! And thanks to Caitlin Grace for putting up her/your honors thesis. Wonderful reading! Summaries are just right, too. "If it ain't broke, don"t fix it." I agree with Jeff Alexander, above. This is terrific as-is. -Tom