Need suggestions on passing parameters by URL

[stanj]

I have a need for sending a customer to a page after checkout_success.php that includes the order number as a URL parameter. The gives some additional text information about their order depending on the type of products ordered instead of redirecting to the catalog when the "Continue" button is clicked. If I manually add the order_id to the end of the link the correct information texts are displayed.

I had not been able to figure out how to insert the order_ID into the URL link. The format for the link is not the problem, it is retreiving the order_ID and actually getting the number. I hoped I could just append something like at the end of the <a hef="www.mysite.com/display.php?order_ID="<? php echo $insert_ID; ?>

Any suggestions on how do accomplish this?

Thanks

Stan