document.write("<option value=\"1955.html\">XBO xenon short-arc lamps 2</option> "); document.write("<option value=\"1954.html\">XBO xenon short-arc lamps 1</option> "); document.write("<option value=\"1956.html\">XBO xenon short-arc lamps 3</option> "); document.write("<option value=\"1957.html\">XBO xenon short-arc lamps 4</option> "); document.write("<option value=\"1958.html\">XBO xenon short-arc lamps 5</option> "); document.write("<option value=\"1959.html\">XBO xenon short-arc lamps 6</option> "); document.write("<option value=\"1960.html\">XBO xenon short-arc lamps 7</option> "); document.write("<option value=\"1961.html\">XBO xenon short-arc lamps 8</option> "); document.write("<option value=\"1962.html\">XBO xenon short-arc lamps 9</option> ");