/****** Ç÷¡½¬ ¸µÅ© ****************************************************************/
function  menu_1() {location.href = "company.htm";}  
function  menu_2() {location.href = "product.htm";}
function  menu_3() {location.href = "production.htm";}
function  menu_4() {location.href = "board.htm?brd_no=1";}