function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function popUp(page) {

            var dx=520;

            var dy=440;

            var w = window.open(page, 'popup', 'width=' + dx + ',height=' + dy + ',status=no,resizable=no,menubar=no,location=no,scrollbars=yes,toolbar=no');

            w.focus();

}