Ajax Development Based on Web2.0

Web2.0 is emerging Web technologies,and it includes the popular technologies of blog and Ajax etc.Ajax technology is integrated into a variety of previous techniques, and it is a broad application of new technologies.Ajax can be used in most browsers,but do not need any special software or hardware.It is a customer-way with.Net,J2EE,PHP,CGI,and Ruby scripts.Ajax is applied in many places,such as : Google Maps,Gmail and Google Suggest.Mainly analyzes the theory of Ajax and applies it to cascade menu in projects development.