[Zope] How do I download the results of a large Query

I would like to set up a link to some SQL query results in comma delimited ascii that will download the data rather than display it. I am having two problems. First the data is coming up in the browser and I want them to download it without having to right click and select download. Second, before the SQL is completed the browser times out. I think if I solve the first problem, the second will be Ok, Any ideas? Dennis Baker Information Systems Manager, St. Joseph's Medical Resources