function subWin1(){
       window.open("tokyo.html","window1","width=560,height=680,scrollbars=1,resizable=0");
}

function subWin2(){
       window.open("saitama.html","window2","width=560,height=730,scrollbars=1,resizable=0");
}

function subWin3(){
       window.open("shanghai.html","window3","width=560,height=560,scrollbars=1,resizable=0");
}