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

function popup(url, width, height, scroll) {
var Left=(screen.width-width)/2;
var Top=(screen.height-height)/2;
(scroll)?scroll1='yes':Scroll1='no';
var Win = window.open(url,"Window",'width=' + width + ',height=' + height + ',resizable=0,scrollbars='+scroll1+',menubar=no,left='+Left+',top='+Top );
}