maks=2069;

document.write("<table width=100%><tr><td align=left>")
num=num();
if (num>1) {
   pre=num-1;
   document.write('<a href="msg' + pre + '.htm">')
   document.write('<img border=0 src="../i/previous.gif" alt="Previous message"></a>')
}
document.write("</td><td align=right>")
num++;
if (num<=maks) {
document.write('<a href="msg' + num + '.htm">')
document.write('<img border=0 src="../i/next.gif" alt="Next message"></a>')
}
document.write('</td></tr></table>');

function num() {
  d=document.URL;
  ind=d.lastIndexOf('/');
  fn=d.substring(ind+4);
  ind2=fn.lastIndexOf('.');
  pre=fn.substring(0,ind2);
  return(pre);
}