function openWin1()
{
window.open("saiyo/koushizou.html","","width=450,height=330");
}
function openWin2()
{
window.open("saiyo/seisyain_saiyo_nagare.html","","width=450,height=450");
}
function openWin3()
{
window.open("saiyo/arubaito_instructor_rank.html","","width=550,height=475");
}
function openWin4()
{
window.open("kaisya_keireki.html","","width=545,height=450,scrollbars=yes,status=yes");
}