function openMap1() {
        var myWin=window.open("map1.html",
        "Map1","status=no,scrollbars=yes,width=780,height=640")
        }
function openMap2() {
        var myWin=window.open("map2.html",
        "Map2","status=no,scrollbars=yes,width=520,height=400")
}

function popWin(URL, w, h, scroll) {
    if (scroll == null) scroll = 'yes';
    newWindow = window.open(URL, "newWin", "toolbar=no,location=no,status=no,menubar=no,scrollbars=" + scroll + ",width=" + w + ",height=" + h + ",resizable=no,screenx=100,screeny=60");   
}