function indexframe(url1) {
  document.write('<HTML>');
  document.write('<HEAD>');
  document.write('<meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=big5">');
  document.write('<meta http-equiv="Content-Language" content="zh-tw">');
  document.write('<frameset frameborder="0" cols="*,100%">');
  document.write('<frame noresize src="hidden.html" scrolling="no">');
  document.write('<frame name="main2" noresize marginheight="0" marginwidth="0" src="' + url1 + '" scrolling="auto">');
  document.write('</frameset>');
  document.write('</HEAD>');
  document.write('<BODY>');
  document.write('</BODY>');
  document.write('</HTML>');
}
