function setbg()
{
window.open ("menu_u_bg.html","bottomleft") ;
window.open ("hdr_bg.html","top") ;
window.open ("main.asp?mod=SBG","bottomright") ;
}
function seten()
{
window.open ("menu_u_en.html","bottomleft") ;
window.open ("hdr_en.html","top") ;
window.open ("main.asp?mod=SEN","bottomright") ;
}