Hello Bob, The code looks promising. Thnx. I know the +60*30 represents time. Is it seconds or minutes?

And pls, i would want the page to expire say after 30mins after the page is first displayed for the user. For eg. with reference to clickbank purchases, after the payment has been made(and authenticated), the customer is taken to the 'Thank you page' to fill a JOB CARD in my case.(The JOB CARD url will have all the encryption of the 'cbpop, time purchased, etc.) It is this encypted URL of the 'Thank you page' that i would want expire in certain minutes so that even when someone bookmarks/copies it and revisits it to try to re-order, it would have expired by then .

So Bob, can the code you provided execute this function?

Cheers in advance.