The input form must be set the the UTF-8 character-set using meta tags. The purpose for setting browser character-set is to encode all Unicode code points as UTF-8 byte streams to the submit_to_database.asp Active Server Page.

   <script language=javascript>
   function submitPage()
   {
       document.frmMain.action='submit_to_database.asp';
       document.frmMain.method='POST';
       document.frmMain.submit();
   }
   </script>

   <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=utf-8">

   <FORM NAME=frmMain>
   <pre>
   Unicode Character:<INPUT TYPE="text" NAME="code_point" VALUE="">
   Unicode Value: <INPUT TYPE="text" NAME="unicode_number" VALUE=""><br>
   </pre>
   <br>
   <INPUT TYPE="button" VALUE="Submit Unicode" onClick="submitPage();">
   </FORM>