function m1() { location.href = "/bbs/content.php?co_id=company"; }
function m1s1() { location.href = "/bbs/content.php?co_id=company"; }
function m1s2() { location.href = "/bbs/content.php?co_id=company2"; }
function m1s3() { location.href = "/bbs/content.php?co_id=company3"; }

function m2() { location.href = "/bbs/content.php?co_id=business"; }
function m2s1() { location.href = "/bbs/content.php?co_id=business"; }
function m2s2() { location.href = "/bbs/content.php?co_id=business2"; }
function m2s3() { location.href = "/bbs/content.php?co_id=business3"; }
function m2s4() { location.href = "/bbs/content.php?co_id=business4"; }

function m3() { location.href = "/bbs/board.php?bo_table=product"; }
function m3s1() { location.href = "/bbs/board.php?bo_table=product"; }
function m3s2() { location.href = "/bbs/board.php?bo_table=product2"; }
function m3s3() { location.href = "/bbs/board.php?bo_table=product3"; }

function m4() { location.href = "/bbs/board.php?bo_table=notice"; }
function m4s1() { location.href = "/bbs/board.php?bo_table=notice"; }
function m4s2() { location.href = "/bbs/board.php?bo_table=gallery"; }