Web Datablade

Hello I'm new to informix web datablade programming and needs a possibility to stop the generation of a page, if the user has no permission for it. Because actually it's only done by javascript, which is not really secure. My current solution is to throw an error at the "misql"-tag and show the text of the "mierror"-tag, but the problem of the way is that a rollback will be done. A commit in "misql"-tag hasn't work and the same in the Stored Procedure. Any ideas? Kind Regards klaus