function openbbs() {
window.open('bbs.html','bbs','toolbar=yes,location=no,directories=no,status=no,enubar=no,scrollbars=yes,resizable=yes')
}

function openimg() {
window.open('img_bbs.html','img_bbs','toolbar=yes,location=no,directories=no,status=no,enubar=no,scrollbars=yes,resizable=yes')
}

function opendraw() {
window.open('pic_bbs.html','img_bbs','toolbar=yes,location=no,directories=no,status=no,enubar=no,scrollbars=yes,resizable=yes')
}