function mInfo(className) {
  document.write('<a ');
  document.write('class="'+className+'" ');
  document.write('href="');
  document.write('mail');
  document.write('to:');
  document.write('info');
  document.write('@');
  document.write('systematic');
  document.write('.cz"');
  document.write('>');
  document.write('info');
  document.write('@');
  document.write('systematic');
  document.write('.cz');
  document.write('</a>');
}