function popuppre(){
    window.open("html/pre.html", "pre", "width=600,height=400, menubar=no, toolbar=no, scrollbars=yes");
}
function popupvoi1(){
    window.open("html/voi1.html", "voice", "width=600,height=550, menubar=no, toolbar=no, scrollbars=yes");
}
function popupvoi2(){
    window.open("html/voi2.html", "voice", "width=600,height=600, menubar=no, toolbar=no, scrollbars=yes");
}
function popupvoi3(){
    window.open("html/voi3.html", "voice", "width=600,height=600, menubar=no, toolbar=no, scrollbars=yes");
}
function popupvoi4(){
    window.open("html/voi4.html", "voice", "width=600,height=400, menubar=no, toolbar=no, scrollbars=yes");
}
/* 我々が目指す会社風土 */
function popupvoi5(){
    window.open("html/voi5.html", "voice", "width=600,height=400, menubar=no, toolbar=no, scrollbars=yes");
}