diff --git a/bbs/register_form.php b/bbs/register_form.php
index 57b5eeb53..4a3d6a404 100644
--- a/bbs/register_form.php
+++ b/bbs/register_form.php
@@ -1,6 +1,6 @@
 <?
 include_once('./_common.php');
-include_once($g4['path'].'/plugin/captcha/captcha.lib.php');
+if ($captcha->lib) include_once($captcha->lib);
 
 // 불법접근을 막도록 토큰생성
 $token = md5(uniqid(rand(), true));
diff --git a/bbs/register_form_update.php b/bbs/register_form_update.php
index 33c2d11d5..d91812683 100644
--- a/bbs/register_form_update.php
+++ b/bbs/register_form_update.php
@@ -15,8 +15,8 @@ if ($w == 'u' && $is_admin == 'super') {
         alert('데모 화면에서는 하실(보실) 수 없는 작업입니다.');
 }
 
-if (!chk_tcaptcha("user_answer")) {
-    alert("정상적인 접근이 아닌것 같습니다.");
+if (!chk_captcha("wr_key")) {
+    alert("자동등록방지 코드에 오류가 있습니다.");
 }
 
 $mb_id = trim(strip_tags(mysql_escape_string($_POST[mb_id])));
diff --git a/bbs/register_result.php b/bbs/register_result.php
index 2265ecd84..3751f6cc0 100644
--- a/bbs/register_result.php
+++ b/bbs/register_result.php
@@ -1,12 +1,14 @@
 <?
 include_once('./_common.php');
 
-$mb = get_member($_SESSION[ss_mb_reg]);
+if (isset($_SESSION['ss_mb_reg'])) 
+    $mb = get_member($_SESSION['ss_mb_reg']);
+
 // 회원정보가 없다면 초기 페이지로 이동
-if (!$mb[mb_id]) 
+if (!$mb['mb_id']) 
     goto_url($g4['path']);
 
-$member_skin_path = $g4['path'].'/skin/member/'.$config[cf_member_skin];
+$member_skin_path = $g4['path'].'/skin/member/'.$config['cf_member_skin'];
 
 $g4['title'] = '회원가입결과';
 include_once('./_head.php');
diff --git a/extend/captcha.extend.php b/extend/captcha.extend.php
new file mode 100644
index 000000000..b304c8796
--- /dev/null
+++ b/extend/captcha.extend.php
@@ -0,0 +1,8 @@
+<?
+if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
+
+$captcha = (object)array(
+    'lib' => $g4['path']."/plugin/captcha/captcha.lib.php",
+    'js'  => $g4['path']."/plugin/captcha/captcha.js"
+);
+?>
\ No newline at end of file
diff --git a/extend/tcaptcha.extend.php b/extend/tcaptcha.extend.php
deleted file mode 100644
index 1c778f019..000000000
--- a/extend/tcaptcha.extend.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?
-if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
-
-$captcha = (object)array(
-    'lib' => $g4['path']."/plugin/tcaptcha/tcaptcha.lib.php",
-    'js'  => $g4['path']."/plugin/tcaptcha/tcaptcha.js"
-);
-?>
\ No newline at end of file
diff --git a/js/wrest.js b/js/wrest.js
index c33c2ec0f..32e38169f 100644
--- a/js/wrest.js
+++ b/js/wrest.js
@@ -13,9 +13,7 @@ function wrestItemname(fld)
 function wrestTrim(fld)
 {
     var pattern = /(^\s+)|(\s+$)/g; // \s 공백 문자
-    //(/^\s+|\s+$/g,"");
-    var str = fld.value.replace(pattern, "");
-    return str;
+    return fld.value.replace(pattern, "");
 }
 
 // 필수 입력 검사
@@ -60,7 +58,7 @@ function wrestEmail(fld)
     }
 }
 
-// 한글인지 검사 (자음, 모음만 있는 한글은 불가)
+// 한글인지 검사 (자음, 모음 조합된 한글만 가능)
 function wrestHangul(fld)
 {
     if (!wrestTrim(fld)) return;
@@ -69,7 +67,7 @@ function wrestHangul(fld)
 
     if (pattern.test(fld.value)) {
         if (wrestFld == null) {
-            wrestMsg = wrestItemname(fld) + ' : 한글이 아닙니다. (자음, 모음만 있는 한글은 처리하지 않습니다.)\n';
+            wrestMsg = wrestItemname(fld) + ' : 한글이 아닙니다. (자음, 모음 조합된 한글만 가능)\n';
             wrestFld = fld;
         }
     }
@@ -186,7 +184,7 @@ function wrestMinLength(fld, css)
 {
     if (!wrestTrim(fld)) return;
 
-    var str = css.split('='); // minlength=?? <-- str[1]
+    var str = css.split('_'); // minlength_?? <-- str[1]
 
     if (wrestFld == null) {
         if (fld.value.length < parseInt(str[1])) {
@@ -283,8 +281,8 @@ function wrestSubmit()
                     case "telnum"       : wrestTelNum(el); break; // 김선용 2006.3 - 전화번호 형식 검사
                     case "imgext"       : wrestImgExt(el); break;
                     default :
-                        // css 가 minlength= 로 시작한다면 = 뒤의 숫자는 최소길이값
-                        if (/^minlength\=/.test(css)) {
+                        // css 가 minlength_ 로 시작한다면 _ 뒤의 숫자는 최소길이값
+                        if (/^minlength\_/.test(css)) {
                             wrestMinLength(el, css); break;
                         } else if (/^extension\=/.test(css)) {
                             wrestExtension(el, css); break;
diff --git a/lib/common.lib.php b/lib/common.lib.php
index a6e5e65d5..014c8ddb1 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -1597,9 +1597,9 @@ function check_mb_nick($reg_mb_nick)
 
     // 별명은 한글, 영문, 숫자만 가능
     if (!check_string($reg_mb_nick, _G4_HANGUL_ + _G4_ALPHABETIC_ + _G4_NUMERIC_)) {
-        return "공백없이 한글, 영문, 숫자만 입력 가능합니다.";
+        return "별명은 공백없이 한글, 영문, 숫자만 입력 가능합니다.";
     } else if (strlen($reg_mb_nick) < 4) {
-        return "한글 2글자, 영문 4글자 이상 입력 가능합니다.";
+        return "별명은 한글 2글자, 영문 4글자 이상 입력 가능합니다.";
     } else {
         $row = sql_fetch(" select count(*) as cnt from {$g4['member_table']} where mb_nick = '$reg_mb_nick' ");
         if ($row['cnt']) {
diff --git a/plugin/captcha/captcha.js b/plugin/captcha/captcha.js
index 6289dfc7b..7c87b4bcd 100644
--- a/plugin/captcha/captcha.js
+++ b/plugin/captcha/captcha.js
@@ -1,4 +1,4 @@
-function chk_captcha(input_key)
+function check_captcha(input_key)
 {
     if (typeof(input_key) != "undefined") {
         var captcha_result = false;
@@ -21,58 +21,16 @@ function chk_captcha(input_key)
     return true;
 }
 
-function l_PlaySound(url, placeholderId) {
-  if (document.getElementById) {
-    var soundUrl = url;
-    var placeholder = document.getElementById(placeholderId);
-
-    placeholder.innerHTML = "";
-
-    document.body.style.cursor = 'wait';
-    var html5SoundPlayed = false;
-    var browserCompatibilityCheck = document.createElement('audio');
-    if (!!(browserCompatibilityCheck.canPlayType) &&
-        !!(browserCompatibilityCheck.canPlayType("audio/wav")) &&
-        !l_DetectFirefox3()) {
-      sound = new Audio(soundUrl);
-      sound.id = 'LBD_CaptchaSoundAudio';
-      sound.autoplay = true;
-      sound.controls = false;
-      sound.autobuffer = false;
-      sound.loop = false;
-
-      placeholder.appendChild(sound);
-      html5SoundPlayed = true;
-    }
-
-    if (!html5SoundPlayed) {
-      var objectSrc = "<object id='LBD_CaptchaSoundObject' classid='clsid:22D6F312-B0F6-11D0-94AB-0080C74C7E95' height='0' width='0' style='width:0; height:0;'><param name='AutoStart' value='1' /><param name='Volume' value='0' /><param name='PlayCount' value='1' /><param name='FileName' value='" + soundUrl + "' /><embed id='LBD_CaptchaSoundEmbed' src='" + soundUrl + "' autoplay='true' hidden='true' volume='100' type='audio/x-wav' style='display:inline;' /></object>";
-
-      placeholder.innerHTML = objectSrc;
-    }
-
-    document.body.style.cursor = 'default';
-  }
-}
-
-function l_DetectFirefox3() {
-  var detected = false;
-  if (navigator && navigator.userAgent) {
-    var matches = navigator.userAgent.match(/(Firefox)\/(3\.6\.[^;\+,\/\s]+)/);
-    if (matches) {
-      detected = true;
-    }
-  }
-  return detected;
-}
-
 $(function() {
-    $("#captcha").click(function() {
+    $("#captcha").click(function(e) {
         this.setAttribute("src", g4_path+"/plugin/captcha/run.php?t="+(new Date).getTime());
-        //$("#captcha_key").focus();//이미지 새로고침 후 입력박스에 포커스 : 지운아빠 2012-07-13
-        //캡챠 클릭 시에 포커스 줘야 하는데 페이지 새로 고침되면 포커스를 줘서 주석처리 : 지운아빠 2012-08-03
+        var keycode = (e.keyCode ? e.keyCode : e.which);
+        // 첫 실행에서는 포커스를 주지 않음
+        if (typeof(keycode) != "undefined") {
+            $("#captcha_key").focus();//이미지 새로고침 후 입력박스에 포커스 : 지운아빠 2012-07-13
+        }
     })
-    .css("cursor", "pointer")
+    .css("cursor", "pointer");
     .trigger("click");
 
     $("#captcha_wav").click(function(){
diff --git a/plugin/captcha/captcha.lib.php b/plugin/captcha/captcha.lib.php
index 487fc1354..620d1f0d0 100644
--- a/plugin/captcha/captcha.lib.php
+++ b/plugin/captcha/captcha.lib.php
@@ -80,10 +80,6 @@ class captcha
 
         // The text to draw
         $captcha_key = $this->get_captcha_key();
-        /*
-        $_SESSION['ss_captcha_key'] = $captcha_key;
-        $_SESSION['ss_captcha_cnt'] = 0;
-        */
         
         set_session('ss_captcha_key', $captcha_key);
         set_session('ss_captcha_cnt', 0);
diff --git a/skin/member/neo/register_form.skin.php b/skin/member/neo/register_form.skin.php
index 10e3c4714..eabd35898 100644
--- a/skin/member/neo/register_form.skin.php
+++ b/skin/member/neo/register_form.skin.php
@@ -14,7 +14,6 @@ var member_skin_path = "<?=$member_skin_path?>";
 <input type="hidden" id="mb_id_enabled" name="mb_id_enabled" value="">
 <input type="hidden" id="mb_nick_enabled" name="mb_nick_enabled" value="">
 <input type="hidden" id="mb_email_enabled" name="mb_email_enabled" value="">
-<!-- <input type="hidden" name="token" value="<?=$token?>"> -->
 <? if (isset($member['mb_sex'])) { ?><input type="hidden" name="mb_sex" value="<?=$member['mb_sex']?>"><? } ?>
 <? if (isset($member['mb_nick_date']) &&  $member['mb_nick_date'] <= date("Y-m-d", $g4['server_time'] - ($config['cf_nick_modify'] * 86400))) { // 별명수정일이 지나지 않았다면 ?>
 <input type="hidden" name="mb_nick_default" value="<?=$member['mb_nick']?>">
@@ -26,18 +25,18 @@ var member_skin_path = "<?=$member_skin_path?>";
 <tr>
     <th scope="row"><label for="reg_mb_id">아이디</label></th>
     <td>
-        <input type="text" id="reg_mb_id" name="mb_id" value="<?=$member['mb_id']?>" maxlength="20" <? if ($w=='u') { echo "readonly style='background-color:#dddddd;'"; } ?> <? if ($w=='') { echo 'required="required"'; } ?> title="회원아이디">
+        <input type="text" id="reg_mb_id" name="mb_id" class="minlength_3" value="<?=$member['mb_id']?>" maxlength="20" <? if ($w=='u') { echo "readonly style='background-color:#dddddd;'"; } ?> <? if ($w=='') { echo 'required="required"'; } ?> title="회원아이디">
         <span id="msg_mb_id"></span>
         <span>영문자, 숫자, _ 만 입력 가능. 최소 3자이상 입력하세요.</span>
     </td>
 </tr>
 <tr>
     <th scope="row"><label for="mb_password">패스워드</label></th>
-    <td><input type="password" id="reg_mb_password" name="mb_password" maxlength="20" <?=($w=='')?'required="required"':'';?> title="패스워드"></td>
+    <td><input type="password" id="reg_mb_password" name="mb_password" class="minlength_3" <?=($w=='')?'required="required"':'';?> maxlength="20" title="패스워드"></td>
 </tr>
 <tr>
     <th scope="row"><label for="reg_mb_password_re">패스워드 확인</label></th>
-    <td><input type="password" id="reg_mb_password_re" name="mb_password_re" maxlength="20" <?=($w=='')?'required="required"':'';?> title="패스워드 확인"></td>
+    <td><input type="password" id="reg_mb_password_re" name="mb_password_re" class="minlength_3" <?=($w=='')?'required="required"':'';?> maxlength="20" title="패스워드 확인"></td>
 </tr>
 </table>
 
@@ -46,7 +45,7 @@ var member_skin_path = "<?=$member_skin_path?>";
 <tr>
     <th scope="row"><label for="reg_mb_name">이름</label></th>
     <td>
-        <input id="reg_mb_name" name="mb_name" value="<?=$member['mb_name']?>" <?=$member['mb_name']?"readonly2":"";?><?echo($w==''?'required="required"':'');?> title="이름">
+        <input type="text" id="reg_mb_name" name="mb_name" class="hangul" value="<?=$member['mb_name']?>" <?=$member['mb_name']?"readonly2":"";?><?echo($w==''?'required="required"':'');?> title="이름">
         <? if ($w=='') { echo "(공백없이 한글만 입력 가능)"; } ?>
     </td>
 </tr>
@@ -55,7 +54,7 @@ var member_skin_path = "<?=$member_skin_path?>";
     <th scope="row"><label for="reg_mb_nick">별명</label></th>
     <td>
         <input type="hidden" name="mb_nick_default" value="<?=isset($member['mb_nick'])?$member['mb_nick']:'';?>">
-        <input type="text" id="reg_mb_nick" name="mb_nick" maxlength="20" value="<?=isset($member['mb_nick'])?$member['mb_nick']:'';?>"<?echo($w==''?'required="required"':'');?> title="별명">
+        <input type="text" id="reg_mb_nick" name="mb_nick" value="<?=isset($member['mb_nick'])?$member['mb_nick']:'';?>" maxlength="20" <?echo($w==''?'required="required"':'');?> title="별명">
         <span id="msg_mb_nick"></span>
         <br>공백없이 한글,영문,숫자만 입력 가능 (한글2자, 영문4자 이상)
         <br>별명을 바꾸시면 앞으로 <?=(int)$config['cf_nick_modify']?>일 이내에는 변경 할 수 없습니다.
@@ -67,7 +66,7 @@ var member_skin_path = "<?=$member_skin_path?>";
     <th scope="row"><label for="reg_mb_email">E-mail</label></th>
     <td>
         <input type="hidden" name="old_email" value="<?=$member['mb_email']?>">
-        <input type="text" id="reg_mb_email" name="mb_email" maxlength="100" value='<?=isset($member['mb_email'])?$member['mb_email']:'';?>'>
+        <input type="text" id="reg_mb_email" name="mb_email" class="email" value='<?=isset($member['mb_email'])?$member['mb_email']:'';?>' maxlength="100" required="required" title="E-mail">
         <span id="msg_mb_email"></span>
         <? if ($config['cf_use_email_certify']) { ?>
             <? if ($w=='') { echo "<br>e-mail 로 발송된 내용을 확인한 후 인증하셔야 회원가입이 완료됩니다."; } ?>
@@ -179,25 +178,23 @@ var member_skin_path = "<?=$member_skin_path?>";
 <? } ?>
 </table>
 
-<?=get_captcha('wr_key', 1);?>
+<?=get_captcha("wr_key", 1);?>
 
 <div class="btn_confirm">
     <input type="submit" value="회원가입" accesskey="s">
 </div>
 </form>
 
-<script src="<?="$g4[path]/js/jquery.kcaptcha.js"?>"></script>
 <script>
 $(function(){
+    /*
     $("#reg_mb_id").blur(function(){
         var msg = reg_mb_id_check();
-        //$("#msg_mb_id").html(msg).css('color', 'red');
         if (msg) alert(msg);
     });
 
     $("#reg_mb_nick").blur(function(){
         var msg = reg_mb_nick_check();
-        //$("#msg_mb_nick").html(msg).css('color', 'red');
         if (msg) alert(msg);
     });
 
@@ -205,6 +202,7 @@ $(function(){
         var msg = reg_mb_email_check();
         if (msg) alert(msg);
     });
+    */
 });