www.heteroclinic.netCourse project for COMP 353/451. An online bargain system, it can provide barter, auction and sales services. The first version uses Oracle database. The second version uses My-SQL. The Web programming is done with PHP. First in COMP 353, a Oracle/PHP website for an online barter website, group work. In COMP 451, it is migrated to MySQL/Linux and optimized. More features are added, like upload pics, paging of the search results, script optimization. It can perform some real bargains: sell/auction/barter and tested, single work.