diff --git a/lib/common.lib.php b/lib/common.lib.php
index 2db6f7b28..1e14e6afc 100644
--- a/lib/common.lib.php
+++ b/lib/common.lib.php
@@ -116,6 +116,17 @@ function goto_url($url)
 // 세션변수 생성
 function set_session($session_name, $value)
 {
+	static $check_cookie = null;
+	
+	if( $check_cookie === null ){
+		$cookie_session_name = session_name();
+		if( ! ($cookie_session_name && isset($_COOKIE[$cookie_session_name]) && $_COOKIE[$cookie_session_name]) && ! headers_sent() ){
+			@session_regenerate_id(false);
+		}
+
+		$check_cookie = 1;
+	}
+
     if (PHP_VERSION < '5.3.0')
         session_register($session_name);
     // PHP 버전별 차이를 없애기 위한 방법