diff --git a/hwe/a_emperior.php b/hwe/a_emperior.php
index 8bfce324..2d7ea874 100644
--- a/hwe/a_emperior.php
+++ b/hwe/a_emperior.php
@@ -54,7 +54,7 @@ if ($showCurrentNation) {
     <tr>
         <td style="background-color:#333333;" align=center colspan=8>
             <font size=5>현재 (<?=$year?>年 <?=$month?>月)</font>
-            <a href="a_history.php"><button>역사 보기</button></a>
+            <a href="a_history.php"><button type='button'>역사 보기</button></a>
         </td>
     </tr>
 </table>
@@ -71,10 +71,10 @@ foreach($emperiors as $emperior){
         <td bgcolor=skyblue align=center colspan=8>
             <font size=5><?=$emperior['phase']?></font>
             
-            <a href="a_emperior_detail.php?select=<?=$emperior['no']?>"><button>자세히</button></a>
+            <a href="a_emperior_detail.php?select=<?=$emperior['no']?>"><button type='button'>자세히</button></a>
             
             <?php if($emperior['server_id']): ?>
-            <a href="a_history.php?serverID=<?=$emperior['server_id']?>"><button>역사 보기</button></a>
+            <a href="a_history.php?serverID=<?=$emperior['server_id']?>"><button type='button'>역사 보기</button></a>
             <?php endif ?>
         </td>
     </tr>
diff --git a/hwe/a_emperior_detail.php b/hwe/a_emperior_detail.php
index 08b5ebc6..6daabeb5 100644
--- a/hwe/a_emperior_detail.php
+++ b/hwe/a_emperior_detail.php
@@ -39,7 +39,7 @@ $serverID = $emperior['server_id']??($emperior['serverID']??null);
 <table align=center width=1000 class="tb_layout bg0">
     <tr><td>역 대 왕 조<br>
         <button onclick=window.close()>창 닫기</button>
-        <div style="float:right;"><a href="a_emperior.php"><button>전체보기</button></a><div>
+        <div style="float:right;"><a href="a_emperior.php"><button type='button'>전체보기</button></a><div>
     </td></tr>
 
 </table>
diff --git a/hwe/index.php b/hwe/index.php
index 7094ebab..81cec7ca 100644
--- a/hwe/index.php
+++ b/hwe/index.php
@@ -204,25 +204,25 @@ echo "
     <tr><td colspan=5 style="text-align:left;">【 접속자 】<?=onlinegen()?></td></tr>
 <?php
 if ($session->userGrade >= 5) {
-    echo "
+?>
     <tr><td colspan=5>
-        <input type=button value=게임관리 onclick=location.replace('_admin1.php')>
-        <input type=button value=회원관리 onclick=location.replace('_admin2.php')>
-        <input type=button value=멀티관리 onclick=location.replace('_admin4.php')>
-        <input type=button value=일제정보 onclick=window.open('_admin5.php')>
-        <input type=button value=접속정보 onclick=window.open('_admin6.php')>
-        <input type=button value=로그정보 onclick=window.open('_admin7.php')>
-        <input type=button value=외교정보 onclick=window.open('_admin8.php')>
-        <input type=button value=119 onclick=window.open('_119.php')>
+        <a href='_admin1.php' target='_blank'><button type='button'>게임관리</button></a>
+        <a href='_admin2.php' target='_blank'><button type='button'>회원관리</button></a>
+        <a href='_admin4.php' target='_blank'><button type='button'>멀티관리</button></a>
+        <a href='_admin5.php' target='_blank'><button type='button'>일제정보</button></a>
+        <a href='_admin6.php' target='_blank'><button type='button'>접속정보</button></a>
+        <a href='_admin7.php' target='_blank'><button type='button'>로그정보</button></a>
+        <a href='_admin8.php' target='_blank'><button type='button'>외교정보</button></a>
+        <a href='_119.php' target='_blank'><button type='button'>119</button></a>
     </td></tr>
-";
+<?php
 }
 else if($session->userGrade == 4){
-    echo "
+    ?>
     <tr><td colspan=5>
-        <input type=button value=119 onclick=window.open('_119.php')>
+        <a href='_119.php' target='_blank'><button type='button'>119</button></a>
     </td></tr>
-";
+<?php
 }
 
 ?>
diff --git a/hwe/js/ext.expand_city.js b/hwe/js/ext.expand_city.js
index 08729f71..9e37931f 100644
--- a/hwe/js/ext.expand_city.js
+++ b/hwe/js/ext.expand_city.js
@@ -435,7 +435,7 @@ $(function() {
                             
                             var enabled = cityInfo['p'+text]&&userInfo['p'+text];
                             var cityVal = cityInfo.val;
-                            var $btn = $('<button>'+text.substr(0,1)+'</button>');
+                            var $btn = $('<button type="button">'+text.substr(0,1)+'</button>');
                             $btn.addClass('mode_'+type);
                             $btn.addClass('for_duty');
                             
@@ -488,7 +488,7 @@ $(function() {
                         
                         //특수 버튼!
                         if(userInfo.p태수||userInfo.p군사||userInfo.p시중){
-                            var $btn = $('<button>...</button>');
+                            var $btn = $('<button type="button">...</button>');
                             $btn.addClass('for_duty');
                             if(userInfo.is수뇌){
                                 $btn.css('color','red');
@@ -796,7 +796,7 @@ $(function() {
         });
         
         
-        var $onGenList = $('<button>암행부 연동</button>');
+        var $onGenList = $('<button type="button">암행부 연동</button>');
         $onGenList.click(function(){
             loadUser();
             return false;
@@ -840,63 +840,63 @@ $(function() {
         
         var $btn;
         
-        $btn = $('<button>도시명</button>').click(function(){
+        $btn = $('<button type="button">도시명</button>').click(function(){
             sortIt(function(a,b){
                 return a.이름.localeCompare(b.이름);
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>인구율</button>').click(function(){
+        $btn = $('<button type="button">인구율</button>').click(function(){
             sortIt(function(a,b){
                 return 1.0*a.주민/a.max주민 - 1.0*b.주민/b.max주민;
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>남은 주민</button>').click(function(){
+        $btn = $('<button type="button">남은 주민</button>').click(function(){
             sortIt(function(a,b){
                 return a.remain주민 - b.remain주민;
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>남은 농업</button>').click(function(){
+        $btn = $('<button type="button">남은 농업</button>').click(function(){
             sortIt(function(a,b){
                 return a.remain농업 - b.remain농업;
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>남은 상업</button>').click(function(){
+        $btn = $('<button type="button">남은 상업</button>').click(function(){
             sortIt(function(a,b){
                 return a.remain상업 - b.remain상업;
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>남은 치안</button>').click(function(){
+        $btn = $('<button type="button">남은 치안</button>').click(function(){
             sortIt(function(a,b){
                 return a.remain치안 - b.remain치안;
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>남은 수비</button>').click(function(){
+        $btn = $('<button type="button">남은 수비</button>').click(function(){
             sortIt(function(a,b){
                 return a.remain수비 - b.remain수비;
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>남은 성벽</button>').click(function(){
+        $btn = $('<button type="button">남은 성벽</button>').click(function(){
             sortIt(function(a,b){
                 return a.remain성벽 - b.remain성벽;
             });
         });
         $sort_more.append($btn);
         
-        $btn = $('<button>배치 장수 수</button>').click(function(){
+        $btn = $('<button type="button">배치 장수 수</button>').click(function(){
             sortIt(function(a,b){
                 return b.userCnt - a.userCnt;
             });
diff --git a/hwe/js/templates/message.html b/hwe/js/templates/message.html
index 58c7e386..5e08fdc8 100644
--- a/hwe/js/templates/message.html
+++ b/hwe/js/templates/message.html
@@ -42,5 +42,5 @@
         <div class="msg_content"><%e(text)%></div>
         <%if(this.option && this.option.action) {%>
         <div class="msg_prompt">
-            <button class="prompt_yes btn_prompt" <%allowButton?'':'disabled="disabled"'%>>>수락</button> <button class="prompt_no btn_prompt" <%allowButton?'':'disabled="disabled"'%>>거절</button>
+            <button type="button" class="prompt_yes btn_prompt" <%allowButton?'':'disabled="disabled"'%>>수락</button> <button type="button" class="prompt_no btn_prompt" <%allowButton?'':'disabled="disabled"'%>>거절</button>
         </div><%} %></div></div>
\ No newline at end of file
diff --git a/hwe/select_npc.php b/hwe/select_npc.php
index 40e7dc04..a3f5cbe6 100644
--- a/hwe/select_npc.php
+++ b/hwe/select_npc.php
@@ -95,7 +95,7 @@ history.go(-1);
 </form>
 </div>
 <div class="with_border legacy_layout" style="text-align:center">
-    <button id="btn_pick_more" disabled="disabled" class="with_skin with_border">다른 장수 보기</button><br>
+    <button type="button" id="btn_pick_more" disabled="disabled" class="with_skin with_border">다른 장수 보기</button><br>
 </div>
 <div class="with_border legacy_layout"><?=backButton()?></div>
 <div class="with_border legacy_layout"><?=banner()?></div>
diff --git a/hwe/templates/allButton.php b/hwe/templates/allButton.php
index 7d2f5cda..f112516c 100644
--- a/hwe/templates/allButton.php
+++ b/hwe/templates/allButton.php
@@ -1,22 +1,22 @@
 <div class="buttonPlate bg1">
     <div>
-        <a href="a_status.php" target="_blank"><button class="toolbarButton">세력도</button></a>
-        <a href="a_kingdomList.php" target="_blank"><button class="toolbarButton">세력일람</button></a>
-        <a href="a_genList.php" target="_blank"><button class="toolbarButton">장수일람</button></a>
-        <a href="a_bestGeneral.php" target="_blank"><button class="toolbarButton">명장일람</button></a>
-        <a href="a_history.php" target="_blank"><button class="toolbarButton">연감</button></a>
-        <a href="a_hallOfFame.php" target="_blank"><button class="toolbarButton">명예의전당</button></a>
-        <a href="a_emperior.php" target="_blank"><button class="toolbarButton">왕조일람</button></a>
-        <a href="a_traffic.php" target="_blank"><button class="toolbarButton">접속량정보</button></a>
+        <a href="a_status.php" target="_blank"><button type="button" class="toolbarButton">세력도</button></a>
+        <a href="a_kingdomList.php" target="_blank"><button type="button" class="toolbarButton">세력일람</button></a>
+        <a href="a_genList.php" target="_blank"><button type="button" class="toolbarButton">장수일람</button></a>
+        <a href="a_bestGeneral.php" target="_blank"><button type="button" class="toolbarButton">명장일람</button></a>
+        <a href="a_history.php" target="_blank"><button type="button" class="toolbarButton">연감</button></a>
+        <a href="a_hallOfFame.php" target="_blank"><button type="button" class="toolbarButton">명예의전당</button></a>
+        <a href="a_emperior.php" target="_blank"><button type="button" class="toolbarButton">왕조일람</button></a>
+        <a href="a_traffic.php" target="_blank"><button type="button" class="toolbarButton">접속량정보</button></a>
     </div>
     <div>
-        <a href="/bbs/board" target="_blank"><button class="toolbarButton2">삼모게시판</button></a>
-        <a href="/bbs/tip" target="_blank"><button class="toolbarButton">팁/강좌</button></a>
-        <a href="/bbs/news" target="_blank"><button class="toolbarButton">삼국 일보</button></a>
-        <a href="/bbs/history2" target="_blank"><button class="toolbarButton">개인 열전</button></a>
-        <a href="/bbs/history3" target="_blank"><button class="toolbarButton">국가 열전</button></a>
-        <a href="/bbs/patch" target="_blank"><button class="toolbarButton">패치 내역</button></a>
-        <a href="battle_simulator" target="_blank"><button class="toolbarButton">전투 시뮬레이터</button></a>
-        <a href="<?=$site?>" target="_blank"><button class="toolbarButton"><?=$call?></button></a>
+        <a href="/bbs/board" target="_blank"><button type="button" class="toolbarButton2">삼모게시판</button></a>
+        <a href="/bbs/tip" target="_blank"><button type="button" class="toolbarButton">팁/강좌</button></a>
+        <a href="/bbs/news" target="_blank"><button type="button" class="toolbarButton">삼국 일보</button></a>
+        <a href="/bbs/history2" target="_blank"><button type="button" class="toolbarButton">개인 열전</button></a>
+        <a href="/bbs/history3" target="_blank"><button type="button" class="toolbarButton">국가 열전</button></a>
+        <a href="/bbs/patch" target="_blank"><button type="button" class="toolbarButton">패치 내역</button></a>
+        <a href="battle_simulator" target="_blank"><button type="button" class="toolbarButton">전투 시뮬레이터</button></a>
+        <a href="<?=$site?>" target="_blank"><button type="button" class="toolbarButton"><?=$call?></button></a>
     </div>
 </div>
diff --git a/hwe/templates/commandButton.php b/hwe/templates/commandButton.php
index 830e0e12..c6c519ae 100644
--- a/hwe/templates/commandButton.php
+++ b/hwe/templates/commandButton.php
@@ -1,27 +1,27 @@
 <div class='buttonPlate bg2'>
     <div>
-    <a href='b_nationboard.php'><button class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>회 의 실</button></a>
-    <a href='b_chiefboard.php'><button class='commandButton' <?=$meLevel>=5?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>기 밀 실</button></a>
-    <a href='b_troop.php'><button class='commandButton' <?=($meLevel>=1&&$nationLevel>=1)?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>부대 편성</button></a>
-    <a href='b_myBossInfo.php'><button class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>인 사 부</button></a>
-    <a href='b_dipcenter.php'><button class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>내 무 부</button></a>
-    <a href='b_chiefcenter.php'><button class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>사 령 부</button></a>
-    <a href='b_genList.php' target='_blank'><button class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>암 행 부</button></a>
-    <a href='b_tournament.php' target='_blank'><button class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>토 너 먼 트</button></a>
-    <a href='b_betting.php' target='_blank'><button class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>베 팅 장</button></a>
+    <a href='b_nationboard.php'><button type="button" class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>회 의 실</button></a>
+    <a href='b_chiefboard.php'><button type="button" class='commandButton' <?=$meLevel>=5?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>기 밀 실</button></a>
+    <a href='b_troop.php'><button type="button" class='commandButton' <?=($meLevel>=1&&$nationLevel>=1)?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>부대 편성</button></a>
+    <a href='b_myBossInfo.php'><button type="button" class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>인 사 부</button></a>
+    <a href='b_dipcenter.php'><button type="button" class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>내 무 부</button></a>
+    <a href='b_chiefcenter.php'><button type="button" class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>사 령 부</button></a>
+    <a href='b_genList.php' target='_blank'><button type="button" class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>암 행 부</button></a>
+    <a href='b_tournament.php' target='_blank'><button type="button" class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>토 너 먼 트</button></a>
+    <a href='b_betting.php' target='_blank'><button type="button" class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>베 팅 장</button></a>
 
     </div>
 <div>
 
-    <a href='b_myKingdomInfo.php'><button class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>세력 정보</button></a>
-    <a href='b_myCityInfo.php'><button class='commandButton' <?=($meLevel>=1&&$nationLevel>=1)?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>세력 도시</button></a>
-    <a href='b_myGenInfo.php'><button class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>세력 장수</button></a>
-    <a href='b_nationrule.php'><button class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>국 법</button></a>
-    <a href='b_diplomacy.php'><button class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>중원 정보</button></a>
-    <a href='b_currentCity.php'><button class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>현재 도시</button></a>
-    <a href='b_battleCenter.php' target='_blank'><button class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>감 찰 부</button></a>
-    <a href='b_myPage.php'><button class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>내 정보 &amp; 설정</button></a>
-    <a href='b_auction.php' target='_blank'><button class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>거 래 장</button></a>
+    <a href='b_myKingdomInfo.php'><button type="button" class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>세력 정보</button></a>
+    <a href='b_myCityInfo.php'><button type="button" class='commandButton' <?=($meLevel>=1&&$nationLevel>=1)?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>세력 도시</button></a>
+    <a href='b_myGenInfo.php'><button type="button" class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>세력 장수</button></a>
+    <a href='b_nationrule.php'><button type="button" class='commandButton' <?=$meLevel>=1?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>국 법</button></a>
+    <a href='b_diplomacy.php'><button type="button" class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>중원 정보</button></a>
+    <a href='b_currentCity.php'><button type="button" class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>현재 도시</button></a>
+    <a href='b_battleCenter.php' target='_blank'><button type="button" class='commandButton' <?=$showSecret?'':'disabled'?> style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>감 찰 부</button></a>
+    <a href='b_myPage.php'><button type="button" class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>내 정보 &amp; 설정</button></a>
+    <a href='b_auction.php' target='_blank'><button type="button" class='commandButton' style='background-color:<?=$bgColor?>;color:<?=$fgColor?>;'>거 래 장</button></a>
 
     </div>
 </div>
\ No newline at end of file
diff --git a/hwe/templates/error.php b/hwe/templates/error.php
index d30e7dd3..c97ad6ac 100644
--- a/hwe/templates/error.php
+++ b/hwe/templates/error.php
@@ -21,7 +21,7 @@
             &nbsp;&nbsp;&nbsp;운영자가 처리할 때까지 기다려주세요
     </main>
     <div class="with_border">
-        <button style='width:200px;height:2em;font-size:1.2em;' onclick="location.replace('./')">몇 초 뒤 눌러주세요</button>
+        <button type="button" style='width:200px;height:2em;font-size:1.2em;' onclick="location.replace('./')">몇 초 뒤 눌러주세요</button>
     </div>
     <div class="with_border">
         <?=$message?>
diff --git a/i_entrance/admin_userlist.php b/i_entrance/admin_userlist.php
index 5f5e4a2e..2b53a7e2 100644
--- a/i_entrance/admin_userlist.php
+++ b/i_entrance/admin_userlist.php
@@ -27,7 +27,7 @@ require(__dir__.'/../vendor/autoload.php');
 <div class="container">
     <div class="card">
         <div class="card-header">
-            <a href="entrance.php"><button class="btn btn-primary" style="float:right;">돌아가기</button></a>
+            <a href="entrance.php"><button type="button" class="btn btn-primary" style="float:right;">돌아가기</button></a>
             <h3>회원 관리</h3>
             
         </div>
diff --git a/i_entrance/entrance.php b/i_entrance/entrance.php
index b2c7a7f3..32e5ee53 100644
--- a/i_entrance/entrance.php
+++ b/i_entrance/entrance.php
@@ -108,8 +108,8 @@ if ($userGrade >= 5) {
 <div id="user_info">
     <div class="bg2 section_title with_border">계 정 관 리</div>
     <div class="center_ordered_items with_border bg0">
-        <a href="user_info.php"><button id="btn_user_manage" class="with_skin">비밀번호 &amp; 전콘 &amp; 탈퇴</button></a>
-        <button id="btn_logout" class="with_skin">로 그 아 웃</button>
+        <a href="user_info.php"><button type="button" id="btn_user_manage" class="with_skin">비밀번호 &amp; 전콘 &amp; 탈퇴</button></a>
+        <button type="button" id="btn_logout" class="with_skin">로 그 아 웃</button>
     </div>
 </div>
 
diff --git a/i_entrance/templates/global_panel.php b/i_entrance/templates/global_panel.php
index 8cb070bb..b5609691 100644
--- a/i_entrance/templates/global_panel.php
+++ b/i_entrance/templates/global_panel.php
@@ -1,10 +1,10 @@
 <div id="admin_userlist">
     <div class="bg2 section_title with_border">회 원 관 리</div>
     <div class="center_ordered_items with_border bg0">
-        <a href="admin_userlist.php"><button class="with_skin" type="button">회원 관리</button></a>
+        <a href="admin_userlist.php"><button type="button" class="with_skin">회원 관리</button></a>
     </div>
     <div class="center_ordered_items with_border bg0">
             <textarea cols="80" rows="3" id="notice_edit" name="notice"><?=$notice?></textarea>
-            <button id="notice_change_btn" class="with_skin">공지 변경</button>
+            <button type="button" id="notice_change_btn" class="with_skin">공지 변경</button>
     </div>
 </div>
diff --git a/i_entrance/user_info.php b/i_entrance/user_info.php
index 4dc32989..4ae9d1cf 100644
--- a/i_entrance/user_info.php
+++ b/i_entrance/user_info.php
@@ -43,7 +43,7 @@ require(__dir__.'/../vendor/autoload.php');
 <table class="bg0" id="user_info_table">
     <caption class="bg2 section_title with_border">
         계 정 관 리
-        <a href="entrance.php"><button id="btn_back1" class="with_skin">돌아가기</button></a>
+        <a href="entrance.php"><button type="button" id="btn_back1" class="with_skin">돌아가기</button></a>
     </caption>
     <colgroup>
         <col style="width:90px;min-width:90px;" />
diff --git a/index.php b/index.php
index 795f88ef..a6ff8f98 100644
--- a/index.php
+++ b/index.php
@@ -134,7 +134,7 @@ function postOAuthResult(result){
 <body>
 <nav class="navbar navbar-expand-lg fixed-top navbar-light bg-light">
   <a class="navbar-brand" href=".">삼국지 모의전투 HiDCHe</a>
-  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
+  <button type="button" class="navbar-toggler" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
     <span class="navbar-toggler-icon"></span>
   </button>
   <div class="collapse navbar-collapse" id="navbarNav">
diff --git a/js/admin_server.js b/js/admin_server.js
index 4467efc9..b623f4ff 100644
--- a/js/admin_server.js
+++ b/js/admin_server.js
@@ -4,13 +4,13 @@ var serverAdminTemplate = '\
     <th style="color:<%color%>;"><%korName%>(<%name%>)</th>\
     <td><%status%></td>\
     <td><%version%></td>\
-    <td><button class="serv_act_close with_skin valid_if_set with_border obj_fill" onclick="modifyServerStatus(this, \'close\');">폐쇄</button></td>\
-    <td><button class="serv_act_open with_skin valid_if_set with_border obj_fill" onclick="modifyServerStatus(this, \'open\');">오픈</button></td>\
-    <td><a class="just_link" href="../<%name%>/install.php"><button class="serv_act_reset with_skin valid_if_set with_border obj_fill">리셋</button></a></td>\
-    <td><a class="just_link" href="../<%name%>/install_db.php"><button class="serv_act_hard_reset with_skin valid_if_installed only_admin with_border obj_fill">하드리셋</button></a></td>\
-    <td><button class="serv_act_login_close with_skin valid_if_set with_border obj_fill" onclick="Entrance_AdminClosedLogin(this);">폐쇄중 로그인</button></td>\
-    <td><button class="serv_act_119 with_skin valid_if_set with_border obj_fill" onclick="Entrance_AdminOpen119(this);">서버119</button></td>\
-    <td><button class="serv_act_update with_skin with_border obj_fill" onclick="serverUpdate(this);">업데이트</button></td>\
+    <td><button type="button" class="serv_act_close with_skin valid_if_set with_border obj_fill" onclick="modifyServerStatus(this, \'close\');">폐쇄</button></td>\
+    <td><button type="button" class="serv_act_open with_skin valid_if_set with_border obj_fill" onclick="modifyServerStatus(this, \'open\');">오픈</button></td>\
+    <td><a class="just_link" href="../<%name%>/install.php"><button type="button" class="serv_act_reset with_skin valid_if_set with_border obj_fill">리셋</button></a></td>\
+    <td><a class="just_link" href="../<%name%>/install_db.php"><button type="button" class="serv_act_hard_reset with_skin valid_if_installed only_admin with_border obj_fill">하드리셋</button></a></td>\
+    <td><button type="button" class="serv_act_login_close with_skin valid_if_set with_border obj_fill" onclick="Entrance_AdminClosedLogin(this);">폐쇄중 로그인</button></td>\
+    <td><button type="button" class="serv_act_119 with_skin valid_if_set with_border obj_fill" onclick="Entrance_AdminOpen119(this);">서버119</button></td>\
+    <td><button type="button" class="serv_act_update with_skin with_border obj_fill" onclick="serverUpdate(this);">업데이트</button></td>\
 </tr>\
 ';
 
diff --git a/js/entrance.js b/js/entrance.js
index 7a369025..89a9770d 100644
--- a/js/entrance.js
+++ b/js/entrance.js
@@ -22,15 +22,15 @@ var serverFullTemplate = "\
 var serverCreateAndSelectTemplate = "\
 <td colspan='2' class='not_registered'>- 미 등 록 -</td>\
 <td class='ignore_border'>\
-<a href='<%serverPath%>/select_npc.php'><button class='general_select with_skin'>장수선택</button></a>\
-<a href='<%serverPath%>/join.php'><button class='general_create with_skin'>장수생성</button></a>\
+<a href='<%serverPath%>/select_npc.php'><button type='button' class='general_select with_skin'>장수선택</button></a>\
+<a href='<%serverPath%>/join.php'><button type='button' class='general_create with_skin'>장수생성</button></a>\
 </td>\
 ";
 
 var serverCreateTemplate = "\
 <td colspan='2' class='not_registered'>- 미 등 록 -</div>\
 <td class='ignore_border'>\
-<a href='<%serverPath%>/join.php'><button class='general_create with_skin'>장수생성</button></a>\
+<a href='<%serverPath%>/join.php'><button type='button' class='general_create with_skin'>장수생성</button></a>\
 </td>\
 ";
 
@@ -38,7 +38,7 @@ var serverLoginTemplate = "\
 <td style='background:url(<%picture%>);background-size: 64px 64px;'></td>\
 <td><%name%></td>\
 <td class='ignore_border'>\
-<a href='<%serverPath%>/'><button class='general_login with_skin'>입장</button></a>\
+<a href='<%serverPath%>/'><button type='button' class='general_login with_skin'>입장</button></a>\
 </td>\
 ";