关于如何动态地在同一页面实现两个 < select > 互传 (s1 <==> s2)[2]

    "j=j+1; break" & vbcrlf & "}"&vbcrlf & "}"&vbcrlf& _
    "if (j > 0) {"&vbcrlf&_
               "document.form1.select1.options[document.form1.select1.options.length] = new option(" &  _
              "document.form1.sel2.options[document.form1.sel2.selectedindex].value,"  & _
              "document.form1.sel2.options[document.form1.sel2.selectedindex].value);"& vbcrlf
           str=str&"document.form1.sel2.options[document.form1.sel2.selectedindex] =null;" & vbcrlf &"}"& vbcrlf &"}"& vbcrlf &"}"
    response.write "<scr"& "ipt language=""javascript"">" & vbcrlf
    response.write str & vbcrlf & "</scr"&"ipt>"& vbcrlf
    %>
       
     </tr>
  </table>
</form>
</body>
</html>