Hi thanks for the reply but that won't work in this case, They have an existing site built in Joomla and I am going to link to these external scripts from within the joomla site. What I need to do is allow access to these pages for people who are logged into the joomla site, so far so good, thats not a problem, but what I want to do is stop people copying the url into a browser and seeing the page without going through the joomla login first, so I want to allow access if called from the same domain but not from anywhere else.
Is that possible?