<script>

function fsubmit(f) {
alert( f._inp_h1.value + "n" +
                f._inp_t1.value + "n" +
                f._inp_t2.value + "n" +
                f._inp_c1.checked + "n" +
                f._inp_c2.checked + "n" +
                f._inp_r.value + "n");

                if( f._inp_r.value == "1" )
                        f.action="target_home1.html";
                else
                        f.action="target_home2.html";

                f.submit();
}

</script>
<form name="frm_1" action="" method = post onSubmit="fsubmit(frm_1)">
<input type=hidden name="_inp_h1" value="hidden"><br>
<input type=text name="_inp_t1" value="text1"><br>
<input type=text name="_inp_t2" value="text2"><br>
<input type=checkbox name="_inp_c1" value="c1" checked><br>
<input type=checkbox name="_inp_c2" value="c2"><br>

<input type=radio name="_inp_r" value="1" checked> target_home1.html<br>
<input type=radio name="_inp_r" value="2"> target_home2.html<br>

<input type=submit name=sub value=submit>
</form>

---------------------
위와같이 구성해봤습니다.
radio버튼에 대해서 action 페이지는 변해서 잘 가는데
_inp_r.value에 대해서 알고 싶은데
저렇게 하니까 undefined가 나오는군요

radio버튼의 value에 대해서 출력할 수 없나요?