diff --git a/src/web/module/maestro_section_mouse_app.html b/src/web/module/maestro_section_mouse_app.html
index a30c42a..053a0d1 100644
--- a/src/web/module/maestro_section_mouse_app.html
+++ b/src/web/module/maestro_section_mouse_app.html
@@ -1,47 +1,28 @@
 <script type="text/javascript">
+
 $(document).ready(function() {
 	loadMouseApp();
 });
 
-
 function loadMouseApp() {
 	let self = this;
 
-	let xhr = new XMLHttpRequest(); //new로 생성.
-	xhr.open('POST', './../server/app/mouse_app_list.php', true);
-	xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-	xhr.send("maestro_id=" + maestroID);
-	xhr.onload = function() {
-		if(xhr.readyState === 4 && xhr.status === 200) {
-			// console.log(xhr.responseText);
-			// console.log(xhr.responseText.length);
-			if(xhr.responseText.length === 0 || xhr.responseText === null) {
-				console.log("no data from server");
-				return;
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/app/mouse_app_list.php",
+		"maestro_id=" + maestroID,
+
+		(jsonData) => {
+			makeMouseAppList(jsonData["appList"]);
+			activateMouseApp(jsonData["activatedAppList"]);
+		},
+
+		(errorMessage) => {
+			if($("#error_message").length) {
+				$("#error_message").text(errorMessage);
 			}
-
-			let replyJSON = JSON.parse(xhr.responseText);
-			// console.log(replyJSON);
-
-			if(replyJSON === null) {
-				console.log("no data from server");
-				return;
-			}
-
-			if(replyJSON["ERROR"] !== undefined || replyJSON["RESULT"] === undefined) {
-				console.log(replyJSON["ERROR"]);
-				return;
-			}
-
-			if(replyJSON["RESULT"] === "fail") {
-				console.log(replyJSON["RESULT"]);
-				return;
-			}
-
-			makeMouseAppList(replyJSON["List"]);
-			activateMouseApp(replyJSON["ActivatedList"]);
 		}
-	}
+
+	);
 }
 
 function makeMouseAppList(appList) {
@@ -52,12 +33,12 @@ function makeMouseAppList(appList) {
 
 		$("#mouse_app_content").append(
 			"<span>"
-				+ "<input type='checkbox' id='checkbox" + appData.AppID + "' data-app-id='" + appData.AppID + "' />"
-				+ "<label for='checkbox" + appData.AppID + "'>" + appData.KoreanName + "</label>"
+				+ "<input type='checkbox' id='checkbox" + appData.appID + "' data-app-id='" + appData.appID + "' />"
+				+ "<label for='checkbox" + appData.appID + "'>" + appData.koreanName + "</label>"
 			+ "</span>"
 		);
 
-		$("#checkbox" + appData.AppID).change(function() {
+		$("#checkbox" + appData.appID).change(function() {
 			if($(this).is(":checked")) {
 				activateApp($(this).data("appId"));
 			} else {
@@ -69,7 +50,7 @@ function makeMouseAppList(appList) {
 
 function activateMouseApp(activatedList) {
 	for(let i = 0; i < activatedList.length; i++) {
-		let activatedAppID = activatedList[i].AppID;
+		let activatedAppID = activatedList[i].appID;
 
 		let input = $("#checkbox" + activatedAppID);
 		input.prop("checked", true);
@@ -78,76 +59,39 @@ function activateMouseApp(activatedList) {
 
 function activateApp(appID) {
 
-	let xhr = new XMLHttpRequest(); //new로 생성.
-	xhr.open('POST', './../server/app/activate_app.php', true);
-	xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-	xhr.send("maestro_id=" + maestroID + "&app_id=" + appID);
-	xhr.onload = function() {
-		if(xhr.readyState === 4 && xhr.status === 200) {
-			// console.log(xhr.responseText);
-			// console.log(xhr.responseText.length);
-			if(xhr.responseText.length === 0 || xhr.responseText === null) {
-				console.log("no data from server");
-				return;
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/app/activate_app.php",
+		"maestro_id=" + maestroID + "&app_id=" + appID,
+
+		(jsonData) => {
+			// addPlayerListManager.updateAddPlayerListPage(1);
+		},
+
+		(errorMessage) => {
+			if($("#error_message").length) {
+				$("#error_message").text(errorMessage);
 			}
-
-			let replyJSON = JSON.parse(xhr.responseText);
-			// console.log(replyJSON);
-
-			if(replyJSON === null) {
-				console.log("no data from server");
-				return;
-			}
-
-			if(replyJSON["ERROR"] !== undefined || replyJSON["RESULT"] === undefined) {
-				console.log(replyJSON["ERROR"]);
-				return;
-			}
-
-			if(replyJSON["RESULT"] === "fail") {
-				console.log(replyJSON["RESULT"]);
-				return;
-			}
-
 		}
-	}
+
+	);
 }
 
 function deactivateApp(appID) {
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/app/deactivate_app.php",
+		"maestro_id=" + maestroID + "&app_id=" + appID,
 
-	let xhr = new XMLHttpRequest(); //new로 생성.
-	xhr.open('POST', './../server/app/deactivate_app.php', true);
-	xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-	xhr.send("maestro_id=" + maestroID + "&app_id=" + appID);
-	xhr.onload = function() {
-		if(xhr.readyState === 4 && xhr.status === 200) {
-			// console.log(xhr.responseText);
-			// console.log(xhr.responseText.length);
-			if(xhr.responseText.length === 0 || xhr.responseText === null) {
-				console.log("no data from server");
-				return;
+		(jsonData) => {
+			// addPlayerListManager.updateAddPlayerListPage(1);
+		},
+
+		(errorMessage) => {
+			if($("#error_message").length) {
+				$("#error_message").text(errorMessage);
 			}
-
-			let replyJSON = JSON.parse(xhr.responseText);
-			// console.log(replyJSON);
-
-			if(replyJSON === null) {
-				console.log("no data from server");
-				return;
-			}
-
-			if(replyJSON["ERROR"] !== undefined || replyJSON["RESULT"] === undefined) {
-				console.log(replyJSON["ERROR"]);
-				return;
-			}
-
-			if(replyJSON["RESULT"] === "fail") {
-				console.log(replyJSON["RESULT"]);
-				return;
-			}
-
 		}
-	}
+
+	);
 }
 
 </script>
diff --git a/src/web/module/maestro_section_typing_app.html b/src/web/module/maestro_section_typing_app.html
index 08323d7..28db516 100644
--- a/src/web/module/maestro_section_typing_app.html
+++ b/src/web/module/maestro_section_typing_app.html
@@ -1,47 +1,29 @@
 <script type="text/javascript">
+
 $(document).ready(function() {
 	loadTypingApp();
 });
 
-
 function loadTypingApp() {
 	let self = this;
 
-	let xhr = new XMLHttpRequest(); //new로 생성.
-	xhr.open('POST', './../server/app/typing_app_list.php', true);
-	xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-	xhr.send("maestro_id=" + maestroID);
-	xhr.onload = function() {
-		if(xhr.readyState === 4 && xhr.status === 200) {
-			// console.log(xhr.responseText);
-			// console.log(xhr.responseText.length);
-			if(xhr.responseText.length === 0 || xhr.responseText === null) {
-				console.log("no data from server");
-				return;
+	sendRequestServer(	//url, sendParams, onSuccess, onFail, isDebugMode);
+		"./../server/app/typing_app_list.php",
+		"maestro_id=" + maestroID,
+
+		(jsonData) => {
+			makeTypingAppList(jsonData["appList"]);
+			activateTypingApp(jsonData["activatedAppList"]);
+		},
+
+		(errorMessage) => {
+			console.log(errorMessage);
+			if($("#error_message").length) {
+				$("#error_message").text(errorMessage);
 			}
-
-			let replyJSON = JSON.parse(xhr.responseText);
-			// console.log(replyJSON);
-
-			if(replyJSON === null) {
-				console.log("no data from server");
-				return;
-			}
-
-			if(replyJSON["ERROR"] !== undefined || replyJSON["RESULT"] === undefined) {
-				console.log(replyJSON["ERROR"]);
-				return;
-			}
-
-			if(replyJSON["RESULT"] === "fail") {
-				console.log(replyJSON["RESULT"]);
-				return;
-			}
-
-			makeTypingAppList(replyJSON["List"]);
-			activateTypingApp(replyJSON["ActivatedList"]);
 		}
-	}
+
+	);
 }
 
 function makeTypingAppList(appList) {
@@ -53,28 +35,28 @@ function makeTypingAppList(appList) {
 
 	for(let i = 0; i < appList.length; i++) {
 		let appData = appList[i];
-		if(appData.KoreanName === "")
+		if(appData.koreanName === "")
 			continue;
 
 		let divTag = null;
-		if(appData.AppID <= 10)
+		if(appData.appID <= 10)
 			divTag = $("#typing_practice_kor");
-		else if(appData.AppID <= 20)
+		else if(appData.appID <= 20)
 			divTag = $("#typing_practice_eng");
-		else if(appData.AppID <= 30)
+		else if(appData.appID <= 30)
 			divTag = $("#typing_test_kor");
-		else if(appData.AppID <= 40)
+		else if(appData.appID <= 40)
 			divTag = $("#typing_test_eng");
 		else
 			divTag = $("#typing_app");
 		divTag.append(
 			"<span>"
-				+ "<input type='checkbox' id='checkbox" + appData.AppID + "' data-app-id='" + appData.AppID + "' />"
-				+ "<label for='checkbox" + appData.AppID + "'>" + appData.KoreanName + "</label>"
+				+ "<input type='checkbox' id='checkbox" + appData.appID + "' data-app-id='" + appData.appID + "' />"
+				+ "<label for='checkbox" + appData.appID + "'>" + appData.koreanName + "</label>"
 			+ "</span>"
 		);
 
-		$("#checkbox" + appData.AppID).change(function() {
+		$("#checkbox" + appData.appID).change(function() {
 			if($(this).is(":checked")) {
 				activateApp($(this).data("appId"));
 			} else {
@@ -86,7 +68,7 @@ function makeTypingAppList(appList) {
 
 function activateTypingApp(activatedList) {
 	for(let i = 0; i < activatedList.length; i++) {
-		let activatedAppID = activatedList[i].AppID;
+		let activatedAppID = activatedList[i].appID;
 
 		let input = $("#checkbox" + activatedAppID);
 		input.prop("checked", true);
diff --git a/src/web/server/app/mouse_app_list.php b/src/web/server/app/mouse_app_list.php
index b35cb95..6297e9c 100644
--- a/src/web/server/app/mouse_app_list.php
+++ b/src/web/server/app/mouse_app_list.php
@@ -1,24 +1,26 @@
 <?php
-header('Content-Type: application/json');
+header("Content-Type: application/json");
+
+include "./../lib/send_reply_json.php";
+include "./../setup/connect_db.php";
 
 $maestroID = $_POST["maestro_id"];
 
-include "./../setup/connect_db.php";
-
 
 $mouse_app_list = get_mouse_app_list();
 if($mouse_app_list.length === 0) {
-	send_error_message($replyJSON, "등록된 마우스 앱 없음");
-	$db_conn->close();
+	set_error_message("등록된 마우스 앱 없음");
+	send_result_fail();
 	exit;
 }
 
 $activated_mouse_app_list = get_activated_mouse_app_list($maestroID);
-$replyJSON["List"] = $mouse_app_list;
-$replyJSON["ActivatedList"] = $activated_mouse_app_list;
-$replyJSON["RESULT"] = "ok";
-echo json_encode($replyJSON, JSON_UNESCAPED_UNICODE);
-$db_conn->close();
+
+set_data("appList", $mouse_app_list);
+set_data("activatedAppList", $activated_mouse_app_list);
+send_result_success();
+exit;
+
 
 
 function get_mouse_app_list() {
@@ -35,9 +37,9 @@ function get_mouse_app_list() {
 
 	$playerList = array();
 	while($stmt->fetch()) {
-	    $player['AppID'] = $appID;
-	    $player['AppName'] = $appName;
-	    $player['KoreanName'] = $koreanName;
+	    $player["appID"] = $appID;
+	    $player["appName"] = $appName;
+	    $player["koreanName"] = $koreanName;
 	    array_push($playerList, $player);
 	}
 
@@ -53,13 +55,13 @@ function get_activated_mouse_app_list($maestroID) {
 		INNER JOIN moty_active_app AS AA ON A.AppID = AA.AppID AND A.AppType = 100 AND AA.MaestroID=?"
 	;
 	$stmt = $db_conn->prepare($query);
-	$stmt->bind_param('i', $maestroID);
+	$stmt->bind_param("i", $maestroID);
 	$stmt->execute();
 	$stmt->bind_result($appID);
 
 	$playerList = array();
 	while($stmt->fetch()) {
-	    $player['AppID'] = $appID;
+	    $player["appID"] = $appID;
 	    array_push($playerList, $player);
 	}
 
diff --git a/src/web/server/app/typing_app_list.php b/src/web/server/app/typing_app_list.php
index 931b1ee..0e98ed7 100644
--- a/src/web/server/app/typing_app_list.php
+++ b/src/web/server/app/typing_app_list.php
@@ -1,24 +1,26 @@
 <?php
-header('Content-Type: application/json');
+header("Content-Type: application/json");
+
+include "./../lib/send_reply_json.php";
+include "./../setup/connect_db.php";
 
 $maestroID = $_POST["maestro_id"];
 
-include "./../setup/connect_db.php";
-
 
 $typing_app_list = get_typing_app_list();
 if($typing_app_list.length === 0) {
-	send_error_message($replyJSON, "등록된 타자 앱 없음");
-	$db_conn->close();
+	set_error_message("등록된 타자 앱 없음");
+	send_result_fail();
 	exit;
 }
 
 $activated_typing_app_list = get_activated_typing_app_list($maestroID);
-$replyJSON["List"] = $typing_app_list;
-$replyJSON["ActivatedList"] = $activated_typing_app_list;
-$replyJSON["RESULT"] = "ok";
-echo json_encode($replyJSON, JSON_UNESCAPED_UNICODE);
-$db_conn->close();
+
+set_data("appList", $typing_app_list);
+set_data("activatedAppList", $activated_typing_app_list);
+send_result_success();
+exit;
+
 
 
 function get_typing_app_list() {
@@ -35,9 +37,9 @@ function get_typing_app_list() {
 
 	$playerList = array();
 	while($stmt->fetch()) {
-	    $player['AppID'] = $appID;
-	    $player['AppName'] = $appName;
-	    $player['KoreanName'] = $koreanName;
+	    $player["appID"] = $appID;
+	    $player["appName"] = $appName;
+	    $player["koreanName"] = $koreanName;
 	    array_push($playerList, $player);
 	}
 
@@ -53,13 +55,13 @@ function get_activated_typing_app_list($maestroID) {
 		INNER JOIN moty_active_app AS AA ON A.AppID = AA.AppID AND A.AppType < 100 AND AA.MaestroID=?"
 	;
 	$stmt = $db_conn->prepare($query);
-	$stmt->bind_param('i', $maestroID);
+	$stmt->bind_param("i", $maestroID);
 	$stmt->execute();
 	$stmt->bind_result($appID);
 
 	$playerList = array();
 	while($stmt->fetch()) {
-	    $player['AppID'] = $appID;
+	    $player["appID"] = $appID;
 	    array_push($playerList, $player);
 	}