jQuery Forum

I am developing a php application using jQuery tabs. I need to create a form that has various tabs that are to be enabled depending on what security group you belong to. Disabling the tab is the easy part. My issue is that the content that would be in the tab is still passed to the browser. Anyone can view the source of the page and see that content that I didnt want them to see. How do you handle blocking the content on the disabled tab? I am open for ideas and cannot find any direction when searching the usual sources (ex. Google...).