Kullanıcıların burçlarını belirleme

<TABLE cellSpacing=0 cellPadding=0 width=600 align=center border=0>
  <TBODY bgColor=#FF66FF>
  <TR>
    <TD vAlign=bottom align=left width=600 height=30>
      <SCRIPT>
function astro()
  {
  var month,day;
  var b = false;
  var i=0;
  var j=0;
  while (b == false)
    {
      document.formsign.month[i].checked?b=true:i++ 
    }
  month = i+1;
  while (b == true)
    {
      document.formsign.month[j].checked?b=false:j++
    }
  day = j+1;
  if (month < 01 || month > 12)
    {document.write("<h1>Invalid Month : " + month + "</h1><br>");}
  if (day < 01 || day > 31)
    {document.write("<h1>Invalid Day : " + day + "</h1><br>");}
  if ((month == 01 && day < 19) || (month == 12 && day >= 23))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz OĞLAK Burcundansınız.</h1></center>");
    }
  if ((month == 02 && day < 19) || (month == 1 && day >= 20))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz KOVA burcundansınız.</h1></center>");
    }
  if ((month == 03 && day < 21) || (month == 2 && day >= 20))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz BALIK burcundansınız.</h1></center>");
    }
  if ((month == 04 && day < 21) || (month == 3 && day >= 22))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz KOÇ burcundansınız.</h1></center>");
    }
  if ((month == 05 && day < 21) || (month == 4 && day >= 21))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz BOĞA burcundansınız.</h1></center>");
    }
  if ((month == 06 && day < 22) || (month == 5 && day >= 22))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz İKİZLER burcundansınız.</h1></center>");
    }
  if ((month == 07 && day < 23) || (month == 6 && day >= 23))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz YENGEÇ burcundansınız.</h1></center>");
    }
  if ((month == 08 && day < 23) || (month == 7 && day >= 24))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz ASLAN burcundansınız.</h1></center>");
    }
  if ((month == 09 && day < 23) || (month == 8 && day >= 24))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz BAŞAK burcundansınız.</h1></center>");
    }
  if ((month == 10 && day < 23) || (month == 9 && day >= 24))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz TERAZİ burcundansınız.</h1></center>");
    }
  if ((month == 11 && day < 22) || (month == 10 && day >= 24))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz AKREP burcundansınız.</h1></center>");
    }
  if ((month == 12 && day < 22) || (month == 11 && day >= 23))
    {  document.write("<br><br><br><br><br><br><br><br><center><h1>Siz YAY burcundansınız.</h1></center>");}
  
  }

</SCRIPT>

      <CENTER>
      <FORM name=formsign>
      <H3>Doğduğunuz ayı seçiniz.</H3><INPUT type=radio value=01 
      name=month>Ocak <INPUT type=radio value=02 name=month>Şubat <INPUT 
      type=radio value=03 name=month>Mart <INPUT type=radio value=04 
      name=month>Nisan <INPUT type=radio value=05 name=month>Mayıs <INPUT 
      type=radio value=06 name=month>Haziran <INPUT type=radio value=07 
      name=month>Temmuz <INPUT type=radio value=08 name=month>Ağustos <INPUT 
      type=radio value=09 name=month>Eylül <INPUT type=radio value=10 
      name=month>Ekim <INPUT type=radio value=11 name=month>Kasım <INPUT 
      type=radio value=12 name=month>Aralık </SELECT><BR>
      <H3>Doğduğunuz günü seçiniz.</H3><INPUT type=radio value=01 
      name=day>01 <INPUT type=radio value=02 name=day>02 <INPUT type=radio 
      value=03 name=day>03 <INPUT type=radio value=04 name=day>04 <INPUT 
      type=radio value=05 name=day>05 <INPUT type=radio value=06 name=day>06 
      <INPUT type=radio value=07 name=day>07 <INPUT type=radio value=08 
      name=day>08 <INPUT type=radio value=09 name=day>09 <INPUT type=radio 
      value=10 name=day>10 <INPUT type=radio value=11 name=day>11 <INPUT 
      type=radio value=12 name=day>12 <INPUT type=radio value=13 name=day>13 
      <INPUT type=radio value=14 name=day>14 <INPUT type=radio value=15 
      name=day>15 <INPUT type=radio value=16 name=day>16 <INPUT type=radio 
      value=17 name=day>17 <INPUT type=radio value=18 name=day>18 <INPUT 
      type=radio value=19 name=day>19 <INPUT type=radio value=20 name=day>20 
      <INPUT type=radio value=21 name=day>21 <INPUT type=radio value=22 
      name=day>22 <INPUT type=radio value=23 name=day>23 <INPUT type=radio 
      value=24 name=day>24 <INPUT type=radio value=25 name=day>25 <INPUT 
      type=radio value=26 name=day>26 <INPUT type=radio value=27 name=day>27 
      <INPUT type=radio value=28 name=day>28 <INPUT type=radio value=29 
      name=day>29 <INPUT type=radio value=30 name=day>30 <INPUT type=radio 
      value=31 name=day>31 
      <HR>
      <BR><INPUT onclick=astro() type=button value="Burcumu göster"> 
      </FORM></CENTER>
      <P></P></TD></TR></TBODY></TABLE>