function NewWinCustom(mypage, myname, h, w){
if (navigator.appVersion.indexOf('Mac') != -1 && navigator.appVersion.indexOf('Safari') != -1){
    h+= 9;
    w+= 1;
}
if (navigator.appVersion.indexOf('Mac') != -1 && navigator.appVersion.indexOf('MSIE') != -1){
    h-= 15;
    w-= 15;
}
    var PopUpWin;
    var leftPosition = (screen.width) ? (screen.width-w)/2 : 0;
    var topPosition = (screen.height) ? (screen.height-h)/2 : 0;
    var settings = "height = " + h + " ,width = " + w + " ,top = " + topPosition + " ,left = " + leftPosition;
    settings += ",scrollbars=0,toolbar=0,resizable=1,location=0,menubar=0,status=0";
    PopUpWin = window.open(mypage, myname, settings);
    PopUpWin = window.focus();
}