var newWinContent = null;
function openBrWindowContent(theURL,winName,fly_width,fly_height) {
  if (newWinContent != null) {
    if (newWinContent.closed == false) {
       newWinContent.location.href=theURL;
       newWinContent.moveTo((screen.width-fly_width)/2,(screen.height-fly_height)/2-50);
       newWinContent.focus();
       // return false;
       return;
     };
   };
   newWinContent = window.open(theURL,winName,'toolbar=no,menubar=yes,directories=no,locationbar=no,location=no,statusbar=yes,status=no,scrollbars=yes,resizable=yes,width='+fly_width+',height='+fly_height);
   newWinContent.moveTo((screen.width-fly_width)/2,(screen.height-fly_height)/2-50);
   newWinContent.focus();
   // return false;
}