diff --git a/AvocadoAmber/classes/htmlprocess/htmlprocess.class.php b/AvocadoAmber/classes/htmlprocess/htmlprocess.class.php
index 4c25edb..34d6861 100644
--- a/AvocadoAmber/classes/htmlprocess/htmlprocess.class.php
+++ b/AvocadoAmber/classes/htmlprocess/htmlprocess.class.php
@@ -1,117 +1,207 @@
 <?php
 class html_process
 {
+  protected $latecss = [];
   protected $css = [];
   protected $js = [];
 
-  function merge_stylesheet($stylesheet, $order)
+  private function updateLoginTable()
   {
-    $links = $this->css;
-    $is_merge = true;
+    global $g5, $member;
 
-    foreach ($links as $link) {
-      if ($link[1] == $stylesheet) {
-        $is_merge = false;
-        break;
-      }
-    }
+    $ip = $_SERVER['REMOTE_ADDR'];
+    $now = G5_TIME_YMDHIS;
+    $location = $g5['lo_location'];
+    $url = $g5['lo_url'];
 
-    if ($is_merge)
-      $this->css[] = [$order, $stylesheet];
+    $result = sql_fetch("SELECT COUNT(*) as cnt FROM {$g5['login_table']} WHERE lo_ip = '$ip'");
+    $exists = $result['cnt'];
+
+    $query = $exists
+      ? "UPDATE {$g5['login_table']} SET mb_id = '{$member['mb_id']}', lo_datetime = '$now', lo_location = '$location', lo_url = '$url' WHERE lo_ip = '$ip'"
+      : "INSERT INTO {$g5['login_table']} (lo_ip, mb_id, lo_datetime, lo_location, lo_url) VALUES ('$ip', '{$member['mb_id']}', '$now', '$location', '$url')";
+
+    sql_query($query, FALSE);
   }
 
-  function merge_javascript($javascript, $order)
+  private function cleanOldLoginRecords($minutes)
   {
-    $scripts = $this->js;
-    $is_merge = true;
-
-    foreach ($scripts as $script) {
-      if ($script[1] == $javascript) {
-        $is_merge = false;
-        break;
-      }
-    }
-
-    if ($is_merge)
-      $this->js[] = [$order, $javascript];
+    global $g5;
+    $oldDate = date("Y-m-d H:i:s", G5_SERVER_TIME - (60 * $minutes));
+    sql_query("DELETE FROM {$g5['login_table']} WHERE lo_datetime < '$oldDate'");
   }
 
-  function run()
+  private function getBufferContents()
   {
-    global $config, $g5, $member;
-
-    $tmp_sql = "SELECT count(*) as cnt FROM {$g5['login_table']} where lo_ip = '{$_SERVER['REMOTE_ADDR']}' ";
-    $tmp_row = sql_fetch($tmp_sql);
-
-    if ($tmp_row['cnt']) {
-      $tmp_sql = "UPDATE {$g5['login_table']} SET mb_id = '{$member['mb_id']}', lo_datetime = '" . G5_TIME_YMDHIS . "', lo_location = '{$g5['lo_location']}', lo_url = '{$g5['lo_url']}' where lo_ip = '{$_SERVER['REMOTE_ADDR']}' ";
-      sql_query($tmp_sql, FALSE);
-    } else {
-      $tmp_sql = "INSERT INTO {$g5['login_table']} ( lo_ip, mb_id, lo_datetime, lo_location, lo_url ) values ( '{$_SERVER['REMOTE_ADDR']}', '{$member['mb_id']}', '" . G5_TIME_YMDHIS . "', '{$g5['lo_location']}',  '{$g5['lo_url']}' ) ";
-      sql_query($tmp_sql, FALSE);
-
-      sql_query("DELETE FROM {$g5['login_table']} WHERE lo_datetime < '" . date("Y-m-d H:i:s", G5_SERVER_TIME - (60 * $config['cf_login_minutes'])) . "' ");
-
-      // 부담(overhead)이 있다면 테이블 최적화
-      //$row = sql_fetch(" SHOW TABLE STATUS FROM `$mysql_db` LIKE '$g5['login_table']' ");
-      //if ($row['Data_free'] > 0) sql_query(" OPTIMIZE TABLE $g5['login_table'] ");
-    }
-
     $buffer = ob_get_contents();
     ob_end_clean();
+    return $buffer;
+  }
+
+  private function genStylesheet()
+  {
+    return $this->genLinks($this->css);
+  }
+
+  private function genLateStylesheet()
+  {
+    return $this->genLinks($this->latecss);
+  }
+
+  private function genLinks($links)
+  {
+    if (empty($links))
+      return '';
+
+    usort($links, function ($a, $b) {
+      if ($a[0] == $b[0]) {
+        return 0;
+      }
+      return ($a[0] < $b[0]) ? -1 : 1;
+    });
 
     $stylesheet = '';
-    $links = $this->css;
-
-    if (!empty($links)) {
-      foreach ($links as $key => $row) {
-        $order[$key] = $row[0];
-        $index[$key] = $key;
-        $style[$key] = $row[1];
-      }
-
-      array_multisort($order, SORT_ASC, $index, SORT_ASC, $links);
-
-      foreach ($links as $link) {
-        if (!trim($link[1]))
-          continue;
-
+    foreach ($links as $link) {
+      if (trim($link[1])) {
         $link[1] = preg_replace('#\.css([\'\"]?>)$#i', '.css?ver=' . G5_CSS_VER . '$1', $link[1]);
-
         $stylesheet .= PHP_EOL . $link[1];
       }
     }
+    return $stylesheet;
+  }
+
+  private function genJavascript()
+  {
+    if (empty($this->js))
+      return '';
+
+    usort($this->js, function ($a, $b) {
+      if ($a[0] == $b[0]) {
+        return 0;
+      }
+      return ($a[0] < $b[0]) ? -1 : 1;
+    });
 
     $javascript = '';
-    $scripts = $this->js;
-    $php_eol = '';
-
-    unset($order);
-    unset($index);
-
-    if (!empty($scripts)) {
-      foreach ($scripts as $key => $row) {
-        $order[$key] = $row[0];
-        $index[$key] = $key;
-        $script[$key] = $row[1];
-      }
-      array_multisort($order, SORT_ASC, $index, SORT_ASC, $scripts);
-      foreach ($scripts as $js) {
-        if (!trim($js[1]))
-          continue;
-
+    foreach ($this->js as $js) {
+      if (trim($js[1])) {
         $js[1] = preg_replace('#\.js([\'\"]?>)$#i', '.js?ver=' . G5_JS_VER . '$1', $js[1]);
-
-        $javascript .= $php_eol . $js[1];
-        $php_eol = PHP_EOL;
+        $javascript .= PHP_EOL . $js[1];
       }
     }
+    return $javascript;
+  }
 
+  private function injectStyles($buffer, $stylesheet, $latestylesheet)
+  {
     $buffer = preg_replace('#(</title>[^<]*<link[^>]+>)#', "$1$stylesheet", $buffer);
-    $nl = '';
-    if ($javascript)
-      $nl = "\n";
-    $buffer = preg_replace('#(</head>[^<]*<body[^>]*>)#', "$javascript{$nl}$1", $buffer);
+    if ($latestylesheet) {
+      $buffer = preg_replace('#(</head>[^<]*<body[^>]*>)#', "$latestylesheet\n$1", $buffer);
+    }
+    return $buffer;
+  }
+
+  private function injectJavascript($buffer, $javascript)
+  {
+    if ($javascript) {
+      $buffer = preg_replace('#(</head>[^<]*<body[^>]*>)#', "$javascript\n$1", $buffer);
+    }
+    return $buffer;
+  }
+
+  public function addLateStyleSheet($stylesheet, $order)
+  {
+    if (trim($stylesheet)) {
+      $stylesheet = trim($stylesheet);
+      $links = $this->latecss;
+      $is_merge = true;
+
+      foreach ($links as $link) {
+        if ($link[1] == $stylesheet) {
+          $is_merge = false;
+          break;
+        }
+      }
+
+      if ($is_merge)
+        $this->latecss[] = [$order, $stylesheet];
+    }
+  }
+
+  public function addStyleSheet($stylesheet, $order = 0)
+  {
+    if (trim($stylesheet)) {
+      $stylesheet = trim($stylesheet);
+      $links = $this->css;
+      $is_merge = true;
+
+      foreach ($links as $link) {
+        if ($link[1] == $stylesheet) {
+          $is_merge = false;
+          break;
+        }
+      }
+
+      if ($is_merge)
+        $this->css[] = [$order, $stylesheet];
+    }
+  }
+
+  public function addJavascript($javascript, $order = 0)
+  {
+    if (trim($javascript)) {
+      $javascript = trim($javascript);
+      $scripts = $this->js;
+      $is_merge = true;
+
+      foreach ($scripts as $script) {
+        if ($script[1] == $javascript) {
+          $is_merge = false;
+          break;
+        }
+      }
+
+      if ($is_merge)
+        $this->js[] = [$order, $javascript];
+    }
+  }
+
+  public function merge_stylesheet($stylesheet, $order = 0)
+  {
+    $this->addStyleSheet($stylesheet, $order);
+  }
+
+  public function merge_javascript($javascript, $order = 0)
+  {
+    $this->addJavascript($javascript, $order);
+  }
+
+  public function optimizeTable()
+  {
+    global $g5;
+    /*
+    // todo
+    $row = sql_fetch(" SHOW TABLE STATUS FROM `{$mysql_db}` LIKE '{$g5['login_table']}' ");
+    // 부담(overhead)이 있다면 테이블 최적화
+    if ($row['Data_free'] > 0) {
+      sql_query(" OPTIMIZE TABLE {$g5['login_table']} ");
+    }*/
+  }
+
+  public function run()
+  {
+    global $config, $g5, $member;
+
+    $this->updateLoginTable();
+    $this->cleanOldLoginRecords($config['cf_login_minutes']);
+
+    $buffer = $this->getBufferContents();
+    $stylesheet = $this->genStylesheet();
+    $latestylesheet = $this->genLateStylesheet();
+    $javascript = $this->genJavascript();
+
+    $buffer = $this->injectStyles($buffer, $stylesheet, $latestylesheet);
+    $buffer = $this->injectJavascript($buffer, $javascript);
 
     if (class_exists("EventHandler")) {
       EventHandler::triggerEvent("amber.renderhtml_before_print", $buffer);