diff --git a/modules/install/lang/en.php b/modules/install/lang/en.php
index e14213872..a90b02f5c 100644
--- a/modules/install/lang/en.php
+++ b/modules/install/lang/en.php
@@ -82,6 +82,7 @@ $lang->ssl_options['optional'] = 'Optional';
 $lang->ssl_options['always'] = 'Always';
 $lang->about_database_file = 'Sqlite saves data in a file. Location of the database file should be unreachable by web<br/><span style="color:red">Data file should be inside the permission of 777.</span>';
 $lang->success_installed = 'Installation has been completed.';
+$lang->msg_db_checking = 'Checking...';
 $lang->msg_installing = 'Installing...';
 $lang->msg_cannot_proc = 'Installation environment is not proper to proceed.';
 $lang->msg_already_installed = 'Rhymix is already installed.';
diff --git a/modules/install/lang/ko.php b/modules/install/lang/ko.php
index b403afeda..c61d02dfd 100644
--- a/modules/install/lang/ko.php
+++ b/modules/install/lang/ko.php
@@ -83,6 +83,7 @@ $lang->ssl_options['always'] = '항상 사용';
 $lang->about_database_file = 'Sqlite는 파일에 데이터를 저장합니다. 데이터베이스 파일의 위치를 웹에서 접근할 수 없는 곳으로 해야 합니다.<br/><span style="color:red">데이터 파일은 777퍼미션 설정된 곳으로 지정해주세요.</span>';
 $lang->success_installed = '설치가 되었습니다.';
 $lang->msg_cannot_proc = '설치 환경이 갖춰지지 않아 요청을 실행할 수가 없습니다.';
+$lang->msg_db_checking = '확인 중입니다...';
 $lang->msg_installing = '설치 중입니다...';
 $lang->msg_already_installed = '이미 설치가 되어 있습니다.';
 $lang->msg_dbconnect_failed = 'DB접속 오류가 발생하였습니다. DB정보를 다시 확인해주세요.';
diff --git a/modules/install/tpl/db_config.html b/modules/install/tpl/db_config.html
index 259230de2..901e0e332 100644
--- a/modules/install/tpl/db_config.html
+++ b/modules/install/tpl/db_config.html
@@ -59,7 +59,7 @@
 			<a href="{getUrl('', 'act','dispInstallCheckEnv')}" class="button grey">&laquo; {$lang->cmd_back}</a>
 		</div>
 		<div class="align-right">
-			<button type="submit" id="task-db-select" value="">{$lang->cmd_next} &raquo;</button>
+			<button type="submit" id="task-db-select" value="" data-checking="{$lang->msg_db_checking}">{$lang->cmd_next} &raquo;</button>
 		</div>
 	</div>
 </form>
diff --git a/modules/install/tpl/js/install.js b/modules/install/tpl/js/install.js
index 7146adcb8..76943a8a7 100644
--- a/modules/install/tpl/js/install.js
+++ b/modules/install/tpl/js/install.js
@@ -37,11 +37,20 @@ jQuery(function($){
 			}
 		});
 	}
+	if($("#task-db-select").size()) {
+		$("#task-db-select").parents("form").on("submit", function() {
+			setTimeout(function() {
+				$("#task-db-select").text($("#task-db-select").data("checking"));
+				$("#task-db-select").prop("disabled", true);
+			}, 100);
+		});
+	}
 	if($("#task-complete-install").size()) {
-		$("#task-complete-install").click(function() {
-			$("#task-complete-install").text($("#task-complete-install").data("installing"));
-			$("#task-complete-install").prop("disabled", true);
-			$(window).on("beforeunload", function() { return ""; });
+		$("#task-complete-install").parents("form").on("submit", function() {
+			setTimeout(function() {
+				$("#task-complete-install").text($("#task-complete-install").data("installing"));
+				$("#task-complete-install").prop("disabled", true);
+			}, 100);
 		});
 	}
 });