Secure my admin pages

[wobbie]

I have a xsl page that contains a list with all the records in my database. This is a public page that everyone can view without logging in. For this I've enabled the guest account.

I've also created xsl pages to edit the list. But when my user gets to these pages, they are automatically logged in as guest. How can I force the login window so that they can get more rights. I've searched the net and this forum and what I find is that I need to initiate a script to switch user account but this scriptstep is not compatible with the web.

How can I setup a security concept that allows me to do this.