diff --git a/web/admin/changepass.php b/web/admin/changepass.php
index 1b3618b..26dbd4c 100644
--- a/web/admin/changepass.php
+++ b/web/admin/changepass.php
@@ -1,73 +1,92 @@
 <?php require_once("admin-header.php");
 
-if (!(isset($_SESSION[$OJ_NAME.'_'.'administrator']) || isset($_SESSION[$OJ_NAME.'_'.'password_setter']) )){
+if (!(isset($_SESSION[$OJ_NAME . '_' . 'administrator']) || isset($_SESSION[$OJ_NAME . '_' . 'password_setter']))) {
 	echo "<a href='../loginpage.php'>Please Login First!</a>";
 	exit(1);
 }
 
-if(isset($OJ_LANG)){
-  require_once("../lang/$OJ_LANG.php");
+if (isset($OJ_LANG)) {
+	require_once("../lang/$OJ_LANG.php");
 }
 ?>
 
 <title>Set Password</title>
 <hr>
-<center><h3><?php echo $MSG_USER."-".$MSG_SETPASSWORD?></h3></center>
+<center>
+	<h3><?php echo $MSG_USER . "-" . $MSG_SETPASSWORD ?></h3>
+</center>
 
 <div class='container'>
 
-<?php
-if(isset($_POST['do'])){	
-	require_once("../include/check_post_key.php");
-	require_once("../include/my_func.inc.php");
-	
-	$user_id = $_POST['user_id'];
-        $passwd = $_POST['passwd'];
+	<?php
+	if (isset($_POST['do'])) {
+		require_once("../include/check_post_key.php");
+		require_once("../include/my_func.inc.php");
 
-  if(false){
-		$user_id = stripslashes($user_id);
-		$passwd = stripslashes($passwd);
+		$user_id = $_POST['user_id'];
+		$passwd = $_POST['passwd'];
+		$nick = $_POST['nick'];
+
+		if ($nick != "") {
+			$sql = "update `users` set `nick`=? where `user_id`=?  and user_id not in( select user_id from privilege where rightstr='administrator')";
+			pdo_query($sql, $nick, $user_id);
+
+			$sql = "update solution set nick=? where user_id=?";
+			pdo_query($sql, $nick, $user_id);
+
+		}
+		if ($passwd != "") {
+
+			$passwd = pwGen($passwd);
+			$sql = "update `users` set `password`=? where `user_id`=?  and user_id not in( select user_id from privilege where rightstr='administrator')";
+
+			if (pdo_query($sql, $passwd, $user_id) == 1)
+				echo "<center><h4 class='text-danger'>User " . htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8') . "'s Password Changed!</h4></center>";
+			else
+				echo "<center><h4 class='text-danger'>There is No such User " . htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8') . "! or User " . htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8') . " is administrator!</h4></center>";
+		}
 	}
+	?>
 
-	$passwd = pwGen($passwd);
-	$sql = "update `users` set `password`=? where `user_id`=?  and user_id not in( select user_id from privilege where rightstr='administrator')";
-	
-	if(pdo_query($sql,$passwd,$user_id) == 1)
-		echo "<center><h4 class='text-danger'>User ".htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8')."'s Password Changed!</h4></center>";
-  else
-  	echo "<center><h4 class='text-danger'>There is No such User ".htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8')."! or User ".htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8')." is administrator!</h4></center>";
-}
-?>
-
-<form action=changepass.php method=post class="form-horizontal">
-	<div class="form-group">
-		<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_USER_ID?></label>
-		<?php if(isset($_GET['uid'])) { ?>
-		<div class="col-sm-3"><input name="user_id" class="form-control" value="<?php echo htmlentities($_GET['uid'], ENT_QUOTES, 'UTF-8');?>" type="text" required ></div>
-  	<?php } else if(isset($_POST['user_id'])) { ?>
-		<div class="col-sm-3"><input name="user_id" class="form-control" value="<?php echo htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8');?>" type="text" required ></div>
-		<?php } else { ?>
-		<div class="col-sm-3"><input name="user_id" class="form-control" placeholder="<?php echo $MSG_USER_ID."*"?>" type="text" required ></div>
-		<?php } ?>
-	</div>
-
-	<div class="form-group">
-		<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_PASSWORD?></label>
-		<div class="col-sm-3"><input name="passwd" class="form-control" placeholder="<?php echo $MSG_PASSWORD."*"?>" type="password"  autocomplete="off" required ></div>
-	</div>
-
-	<div class="form-group">
-		<?php require_once("../include/set_post_key.php");?>
-		<div class="col-sm-offset-4 col-sm-2">
-			<button name="do" type="hidden" value="do" class="btn btn-default btn-block" ><?php echo $MSG_SAVE?></button>
+	<form action=changepass.php method=post class="form-horizontal">
+		<div class="form-group">
+			<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_USER_ID ?></label>
+			<?php if (isset($_GET['uid'])) { ?>
+				<div class="col-sm-3"><input name="user_id" class="form-control"
+						value="<?php echo htmlentities($_GET['uid'], ENT_QUOTES, 'UTF-8'); ?>" type="text" required></div>
+			<?php } else if (isset($_POST['user_id'])) { ?>
+					<div class="col-sm-3"><input name="user_id" class="form-control"
+							value="<?php echo htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8'); ?>" type="text" required>
+					</div>
+			<?php } else { ?>
+					<div class="col-sm-3"><input name="user_id" class="form-control" placeholder="<?php echo $MSG_USER_ID . "*" ?>"
+							type="text" required></div>
+			<?php } ?>
 		</div>
-		<div class="col-sm-2">
-			<button name="submit" type="button" onclick='$("input[name=passwd]").attr("type","text");' class="btn btn-default btn-block">Show</button>
+
+		<div class="form-group">
+			<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_NICK ?></label>
+			<div class="col-sm-3"><input name="nick" class="form-control" placeholder="<?php echo $MSG_NICK . "*" ?>"
+					type="text" autocomplete="off"></div>
 		</div>
-	</div>
-</form>
-
-</div>
 
+		<div class="form-group">
+			<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_PASSWORD ?></label>
+			<div class="col-sm-3"><input name="passwd" class="form-control" placeholder="<?php echo $MSG_PASSWORD . "*" ?>"
+					type="password" autocomplete="off"></div>
+		</div>
 
+		<div class="form-group">
+			<?php require_once("../include/set_post_key.php"); ?>
+			<div class="col-sm-offset-4 col-sm-2">
+				<button name="do" type="hidden" value="do"
+					class="btn btn-default btn-block"><?php echo $MSG_SAVE ?></button>
+			</div>
+			<div class="col-sm-2">
+				<button name="submit" type="button" onclick='$("input[name=passwd]").attr("type","text");'
+					class="btn btn-default btn-block">Show</button>
+			</div>
+		</div>
+	</form>
 
+</div>
\ No newline at end of file
diff --git a/web/changepass.php b/web/changepass.php
index b959d33..378bc13 100644
--- a/web/changepass.php
+++ b/web/changepass.php
@@ -1,93 +1,92 @@
 <?php require_once("admin-header.php");
 
-if (!(isset($_SESSION[$OJ_NAME.'_'.'administrator']) || isset($_SESSION[$OJ_NAME.'_'.'password_setter']) )){
+if (!(isset($_SESSION[$OJ_NAME . '_' . 'administrator']) || isset($_SESSION[$OJ_NAME . '_' . 'password_setter']))) {
 	echo "<a href='../loginpage.php'>Please Login First!</a>";
 	exit(1);
 }
 
-if(isset($OJ_LANG)){
-  require_once("../lang/$OJ_LANG.php");
+if (isset($OJ_LANG)) {
+	require_once("../lang/$OJ_LANG.php");
 }
 ?>
 
 <title>Set Password</title>
 <hr>
-<center><h3><?php echo $MSG_USER."-".$MSG_SETPASSWORD?></h3></center>
+<center>
+	<h3><?php echo $MSG_USER . "-" . $MSG_SETPASSWORD ?></h3>
+</center>
 
 <div class='container'>
 
-<?php
-if(isset($_POST['do'])){	
-	require_once("../include/check_post_key.php");
-	require_once("../include/my_func.inc.php");
-	
-	$user_id = $_POST['user_id'];
-        $passwd = $_POST['passwd'];
-        $nick = $_POST['nick']; 
+	<?php
+	if (isset($_POST['do'])) {
+		require_once("../include/check_post_key.php");
+		require_once("../include/my_func.inc.php");
 
-  if(false){
-		$user_id = stripslashes($user_id);
-		$passwd = stripslashes($passwd);
+		$user_id = $_POST['user_id'];
+		$passwd = $_POST['passwd'];
+		$nick = $_POST['nick'];
+
+		if ($nick != "") {
+			$sql = "update `users` set `nick`=? where `user_id`=?  and user_id not in( select user_id from privilege where rightstr='administrator')";
+			pdo_query($sql, $nick, $user_id);
+
+			$sql = "update solution set nick=? where user_id=?";
+			pdo_query($sql, $nick, $user_id);
+
+		}
+
+		if ($passwd != "") {
+			$passwd = pwGen($passwd);
+			$sql = "update `users` set `password`=? where `user_id`=?  and user_id not in( select user_id from privilege where rightstr='administrator')";
+
+			if (pdo_query($sql, $passwd, $user_id) == 1)
+				echo "<center><h4 class='text-danger'>User " . htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8') . "'s Password Changed!</h4></center>";
+			else
+				echo "<center><h4 class='text-danger'>There is No such User " . htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8') . "! or User " . htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8') . " is administrator!</h4></center>";
+		}
 	}
-	
-	
-if ($nick!="")	
-{
-	$sql = "update `users` set `nick`=? where `user_id`=?  and user_id not in( select user_id from privilege where rightstr='administrator')";	
-	pdo_query($sql,$nick,$user_id) ;
+	?>
 
-        $sql="update solution set nick=? where user_id=?";
-        pdo_query($sql,$nick,$user_id);
-
-}
-
-if ($passwd!="")
-	{
-	$passwd = pwGen($passwd);
-	$sql = "update `users` set `password`=? where `user_id`=?  and user_id not in( select user_id from privilege where rightstr='administrator')";
-	
-	if(pdo_query($sql,$passwd,$user_id) == 1)
-		echo "<center><h4 class='text-danger'>User ".htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8')."'s Password Changed!</h4></center>";
-  else
-  	echo "<center><h4 class='text-danger'>There is No such User ".htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8')."! or User ".htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8')." is administrator!</h4></center>";
-  	}
-}
-?>
-
-<form action=changepass.php method=post class="form-horizontal">
-	<div class="form-group">
-		<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_USER_ID?></label>
-		<?php if(isset($_GET['uid'])) { ?>
-		<div class="col-sm-3"><input name="user_id" class="form-control" value="<?php echo htmlentities($_GET['uid'], ENT_QUOTES, 'UTF-8');?>" type="text" required ></div>
-  	<?php } else if(isset($_POST['user_id'])) { ?>
-		<div class="col-sm-3"><input name="user_id" class="form-control" value="<?php echo htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8');?>" type="text" required ></div>
-		<?php } else { ?>
-		<div class="col-sm-3"><input name="user_id" class="form-control" placeholder="<?php echo $MSG_USER_ID."*"?>" type="text" required ></div>
-		<?php } ?>
-	</div>
-
-	<div class="form-group">
-		<label class="col-sm-offset-3 col-sm-3 control-label">昵称</label>
-		<div class="col-sm-3"><input name="nick" class="form-control" placeholder="昵称" type="text"  autocomplete="off" ></div>
-	</div>
-
-	<div class="form-group">
-		<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_PASSWORD?></label>
-		<div class="col-sm-3"><input name="passwd" class="form-control" placeholder="<?php echo $MSG_PASSWORD?>" type="password"  autocomplete="off" ></div>
-	</div>
-
-	<div class="form-group">
-		<?php require_once("../include/set_post_key.php");?>
-		<div class="col-sm-offset-4 col-sm-2">
-			<button name="do" type="hidden" value="do" class="btn btn-default btn-block" ><?php echo $MSG_SAVE?></button>
+	<form action=changepass.php method=post class="form-horizontal">
+		<div class="form-group">
+			<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_USER_ID ?></label>
+			<?php if (isset($_GET['uid'])) { ?>
+				<div class="col-sm-3"><input name="user_id" class="form-control"
+						value="<?php echo htmlentities($_GET['uid'], ENT_QUOTES, 'UTF-8'); ?>" type="text" required></div>
+			<?php } else if (isset($_POST['user_id'])) { ?>
+					<div class="col-sm-3"><input name="user_id" class="form-control"
+							value="<?php echo htmlentities($_POST['user_id'], ENT_QUOTES, 'UTF-8'); ?>" type="text" required>
+					</div>
+			<?php } else { ?>
+					<div class="col-sm-3"><input name="user_id" class="form-control" placeholder="<?php echo $MSG_USER_ID . "*" ?>"
+							type="text" required></div>
+			<?php } ?>
 		</div>
-		<div class="col-sm-2">
-			<button name="submit" type="button" onclick='$("input[name=passwd]").attr("type","text");' class="btn btn-default btn-block">Show</button>
+
+		<div class="form-group">
+			<label class="col-sm-offset-3 col-sm-3 control-label">昵称</label>
+			<div class="col-sm-3"><input name="nick" class="form-control" placeholder="昵称" type="text"
+					autocomplete="off"></div>
 		</div>
-	</div>
-</form>
-
-</div>
 
+		<div class="form-group">
+			<label class="col-sm-offset-3 col-sm-3 control-label"><?php echo $MSG_PASSWORD ?></label>
+			<div class="col-sm-3"><input name="passwd" class="form-control" placeholder="<?php echo $MSG_PASSWORD ?>"
+					type="password" autocomplete="off"></div>
+		</div>
 
+		<div class="form-group">
+			<?php require_once("../include/set_post_key.php"); ?>
+			<div class="col-sm-offset-4 col-sm-2">
+				<button name="do" type="hidden" value="do"
+					class="btn btn-default btn-block"><?php echo $MSG_SAVE ?></button>
+			</div>
+			<div class="col-sm-2">
+				<button name="submit" type="button" onclick='$("input[name=passwd]").attr("type","text");'
+					class="btn btn-default btn-block">Show</button>
+			</div>
+		</div>
+	</form>
 
+</div>
\ No newline at end of file