Consumption of business processes provided in form of Web sites have become a part of our daily life for attending our personal and business needs. In order to obtain the best solution for a particular task, users often combine several Web sites. However, currently the composition of Web sites, coordination of the execution of such Web sites compositions is done completely manually. In this paper, we present an approach that allows users to automatically compose generic solutions by combining appropriate Web sites and invoke the generic solutions with appropriate parameters whenever required, thus relieving them from a lot of manual coordination effort. We show how Web sites and their compositions can be formalized as processes, how the formal descriptions of Web sites can be automatically composed to obtain generic solutions and how such generic solution can be executed inside a common Web browser with automatic flow of data among different parties despite heterogeneous data.