/***index.htm***/
function menu_1() {location.href = "index.htm";}

/***sitemap.htm***/
function menu_2() {location.href = "map.htm";}

/***default***/
function m11() {location.href = "introduce01.htm";}
function m12() {location.href = "introduce02.htm";}
function m13() {location.href = "introduce03.htm";}
function m14() {location.href = "introduce04.htm";}
function m15() {location.href = "introduce05.htm";}
function m16() {location.href = "introduce06.htm";}

function m21() {location.href = "product01.htm";}
function m22() {location.href = "product02.htm";}
function m23() {location.href = "product03.htm";}
function m24() {location.href = "product04.htm";}
function m25() {location.href = "product05.htm";}
function m26() {location.href = "product06.htm";}

function m31() {location.href = "board.htm?brd_no=1";}
function m32() {location.href = "board.htm?brd_no=2";}
function m33() {location.href = "board.htm?brd_no=3";}
function m34() {location.href = "sky.htm";}

function m41() {location.href = "ir01.htm";}
function m42() {location.href = "ir02.htm";}
function m43() {location.href = "ir03.htm";}

function m51() {location.href = "board.htm?brd_no=20";}
function m52() {location.href = "board.htm?brd_no=21";}
function m53() {location.href = "board.htm?brd_no=22";}

function map() {location.href = "sitemap.htm";}