function menu_link(num)
{
	switch(num)

	{

	  case 1:window.location="abo_greeting.php" ;break;

	  case 11:window.location="abo_greeting.php" ;break;

	  case 12:window.location="abo_mission.php" ;break;

	  case 13:window.location="abo_history.php" ;break;

	  case 14:window.location="abo_chairman.php" ;break;

	  case 15:window.location="abo_staff.php" ;break;

	  case 16:window.location="abo_location.php" ;break;



	  case 2:window.location="ser_welfare.php" ;break;

	  case 21:window.location="ser_welfare.php" ;break;

	  case 22:window.location="ser_education.php" ;break;

	  case 23:window.location="ser_recreation.php" ;break;

	  case 24:window.location="ser_club.php" ;break;

	  case 25:window.location="ser_event.php" ;break;



	  case 3:window.location="sup_method.php" ;break;

	  case 31:window.location="sup_method.php" ;break;

	  case 32:window.location="sup_info.php" ;break;

	  case 33:window.location="sup_reg.php" ;break;



	  case 4:window.location="bbs_news.php" ;break;

	  case 41:window.location="bbs_news.php" ;break;

	  case 42:window.location="bbs_newsletter.php" ;break;

	  case 43:window.location="bbs_qna.php" ;break;

	}
}