function subWin1(){
window.open("map1.html","window2","toolbar=no,resizable=no,menubar=no,directories=no,status=no,location=no,scrollbars=no,width=500,height=360");
}

function subWin2(){
window.open("map2.html","window2","toolbar=no,resizable=no,menubar=no,directories=no,status=no,location=no,scrollbars=no,width=500,height=360");
}