JavaScript Unleashed tells you everything you need to know about adding JavaScript code to your Web pages. It explains all the basic tricks for making Web pages just a bit more interactive, from responding to mouse-over events and validating forms entries to detecting what browser is being used. Later chapters explore the use of "cookies" to track user identity; scripting plug-ins, Java, and ActiveX controls; and server-side JavaScript.
Germanic legends often based romantic operas of especially known composer Richard Wagner, who worked Tannhäuser (1845) and the tetralogy Der Ring des Nibelungen (1853-1876).
From 1872, Richard Wagner lived at Bayreuth to 1883 and designed the opera house, used chiefly for performances of his works.
Wilhelm Richard Wagner conducted, directed theater, and authored essays, primarily for his later called "music dramas." Unlike most other greats, Wagner wrote the scenario and libretto.