An image forming device includes a web server, and serves applets to a communicatively coupled computer. This architecture facilitates a convenient short cut by replacing the complex explicit construction required by conventional systems to create an instance of a DOM with a concise XML literal for which conventional compilers can translate into the appropriate code. Secondary electrodes are positioned within or adjacent to the prostate tissue and spaced from the electrode elements of the expandable member, and an alternating electrical current flow is established between the electrode elements of the expandable member and the one or more secondary electrodes.