Your work consist of a set of web pages and Perl cgi scripts.  Together they should accomplish the following:
 

1. There should be an initial search screen, allowing the user to search for items that are less than some price, more than a second price, and contain some given string.  For example, a user should be able to search for items with the word 'cessna' between $20,000 and $50,000.
2. The second screen should show the items found above, with a check box for each item.  The user can check ZERO or more items, and then click the "go" button.
3. The third screen shows the total for all items.  It asks for the users email address, and offers two buttons.  They are "Buy them" and "Bail out".
4. If the user pressed "Buy them", a forth screen should appear telling the user his purchase is confirmed.  Also, email should go to the user, and to you, detailing the order.