function smalltalk() {
  window.open('cgi-bin/irisnxwcu/irisnx.cgi','bf_contents');
}
function oekaki() {
  window.open('cgi-bin/oekaki/picture.cgi','bf_contents');
}
function gallary() {
  window.open('gallarypage.html','bf_contents');
}
function iyagi() {
  window.open('cgi-bin/pldbbswcu/pldbbs.cgi','bf_contents');
}