document.writeln(" <TABLE WIDTH='770' BORDER='0' CELLSPACING='0' CELLPADDING='0' ALIGN='CENTER'>");
document.writeln(" <TR><TD ><div align='center'>");
document.writeln("  | <a href='/telescopes/refractor/'>refractor telescopes</a> | <a href='/telescopes/reflector/'> reflector telescopes </a>");
document.writeln(" | <a href='/telescopes/reflector/Newtonian/index.htm'>Newtonian telescopes</a>");
document.writeln(" | <a href='/telescopes/reflector/Dobsonian/index.htm'>Dobsonian telescopes</a> |");
document.writeln(" <br>");
document.writeln(" | <a href='/telescopes/Cassegrain/MC-Maksutov/index.htm'>Maksutov telescopes</a> ");
document.writeln(" | <a href='/telescopes/Cassegrain/'> Cassegrain telescopes</a> ");
document.writeln(" | <a href='/telescopes/accessories/'> telescope parts</a> ");
document.writeln(" | <a href='/telescopes/astronomical-instruments/'>astronomical instruments </a> |");
document.writeln("  </div></TD></TR> ");
document.writeln("  </table> ");