function math_map( root_path )
 { 
  

  document.write(' <table border="0" align="center" cellspacing="0" cellpadding="0" vspace="0"> ');
  document.write('   <tr>  ');
  document.write('     <td>  ');
  document.write('       <div align="center">  ');
  document.write('       ( <a href="' + root_path + 'math_index.html"  >main - math</a> ) ');
  document.write('       [ <a href="' + root_path + 'parcijalne.html"  >Parcijalne</a> ]  ');
  document.write('       [ <a href="' + root_path + 'as.html"          >Strukture</a> ]  ');
  document.write('       [ <a href="' + root_path + 'linearf.html"     >Linear Functions</a> ] ');
  document.write('       [ <a href="' + root_path + 'dg/dg.html"       >Surface coloring</a> ] </div> ');
  document.write('     </td> ');
  document.write('   </tr> ');
  document.write(' </table> ');
 }