var num, numx10, rndnum, roundnum;
  rndnum=Math.random();
  numx10=rndnum*10;
  roundnum=Math.round(numx10);
  if((roundnum >= 0) && (roundnum <= 2))  {
    document.write('<a href="fw-non-member.php?Book-90-days,1"><img src="images/Ad-90daysBuyNowSmall.jpg" border="0" height="170" width="131"></a>');
  }
  if((roundnum > 2) && (roundnum <= 4))  {
    document.write('<a href="fw-non-member.php?Book-golf,1"><img src="images/Ad-GolfBuyNowSmall.jpg" border="0" height="170" width="131"></a>');
  }
  if((roundnum > 4) && (roundnum <= 6))  {
    document.write('<a href="fw-non-member.php?Book-martial,1"><img src="images/Ad-MartialArtBuyNowSmall.jpg" border="0" height="170" width="131"></a>');
  }
  if((roundnum > 6) && (roundnum <= 8))  {
    document.write('<a href="fw-non-member.php?Book-nut,3"><img src="images/Ad-NutritionbuynowSmall.jpg" border="0" height="170" width="131"></a>');
  }
  if((roundnum > 8) && (roundnum <= 10))  {
    document.write('<a href="fw-non-member.php?Book-golf,1"><img src="images/Ad-GolfBuyNowSmall.jpg" border="0" height="170" width="131"></a>');
  }