diff --git a/index.php b/index.php
index df08d87..45763d2 100644
--- a/index.php
+++ b/index.php
@@ -2,27 +2,25 @@
 
 require_once "${_SERVER['DOCUMENT_ROOT']}/database.php";
 
-if (isset ($_GET['page'])):
-    $page = $_GET['page'];
-else:
-    $page = 0;
-endif;
-
-if (isset ($_GET['thread'])):
-    $thread = $_GET['thread'];
-else:
-    $thread = -1;
-endif;
-
-if (isset ($_GET['sort'])):
+if (isset ($_GET['page']))
+  $page = $_GET['page'];
+else
+  $page = 0;
+
+if (isset ($_GET['thread']))
+  $thread = $_GET['thread'];
+else
+  $thread = -1;
+
+if (isset ($_GET['sort']))
+  {
     $sort = $_GET['sort'];
 
-    if (!(in_array ($sort, array ('td', 'eg', 'ta', 'eb')))):
-        $sort = 'td';
-    endif;
-else:
-    $sort = 'td';
-endif;
+    if (!(in_array ($sort, array ('td', 'eg', 'ta', 'eb'))))
+      $sort = 'td';
+  }
+else
+  $sort = 'td';
 
 // 画像のディレクトリを開く．
 $dir = '/images/';
@@ -33,18 +31,20 @@ $mysqli = set_mysql ('miteruzo_bbs');
 
 $mysqli -> set_charset ('utf8');
 
-if ($result = $mysqli -> query ("SELECT * FROM threads WHERE id = $thread")):
+if ($result = $mysqli -> query ("SELECT * FROM threads WHERE id = $thread"))
+  {
     $row = $result -> fetch_assoc ();
 
     $title = $row['title'];
     $explain = $row['explain'];
 
     $result -> close ();
-endif;
+  }
 
 if (isset ($_GET['id'])
     && isset ($_GET['evaluate'])
-    && (($_GET['evaluate'] == 'good') || ($_GET['evaluate'] == 'bad'))):
+    && (($_GET['evaluate'] == 'good') || ($_GET['evaluate'] == 'bad')))
+  {
     $mysqli -> query ("
             UPDATE
               responses
@@ -54,7 +54,7 @@ if (isset ($_GET['id'])
               (thread_id = $thread) AND (response_id = {$_GET['id']})");
 
     header ("Location: ./?thread=$thread&sort=$sort");
-endif;
+  }
 
 require_once './forms/index.frm.php';