javascript 가 반응이 없어서 질문드립니다 채택완료

<input type="text" name="mb_hp" value="<?php echo get_text($member['mb_hp']) ?>" id="reg_mb_hp" <?php="" echo="" ($config['cf_req_hp'])?"required":"";="" ?=""><a href="javascript:phoneChk();"><img src="/img/btn02.png" alt="인증번호받기"></a><div class="input_area input_cert"><p>인증번호입력</p><input type="text" name="mb_hp_certify" placeholder="" style="width:200px;"></div><script language="javascript">    function phoneChk(f) {   var pattern = /^01[0-9][-]{0,1}[0-9]{3,4}[-]{0,1}[0-9]{4}$/;   if(!pattern.test(f.mb_hp.value)){    alert("핸드폰 번호가 입력되지 않았거나 번호가 틀립니다.");             f.mb_hp.select();             f.mb_hp.focus();             return; } 			function win_open()win.open("<?php echo $G5_URL; ?>/sms/hp_certify.php?hp="+f.mb_hp.value+"&token=<?=$token?>", "hiddenframe"); } </script>