Highly interactive web applications that offer user experience and responsiveness of desktop applications are becoming increasingly popular. They are often composed out of visually distinctive user-interface (UI) elements that encapsulate a certain behavior – the so called UI controls. Similar controls are often used in a large number of web pages, and facilitating their reuse would offer considerable benefits. Unfortunately, because of a very short time-to-market, and a fast pace of technology development, preparing controls for reuse is usually not a primary concern. The focus of my research will be to circumvent this limitation by developing a method, and the accompanying tool for supporting web UI control reuse. Categories and Subject Descriptors D.2.13 [Software Engineering]: Reusable Software General Terms Design, Theory, Algorithms, Experimentation Keywords Web application, UI controls, code analysis, reuse