function MM_checkBrowser(NSvers,NSpass,NSnoPass,IEvers,IEpass,IEnoPass,OBpass,URL,altURL) { //v1.2
  var newURL = '', version = parseFloat(navigator.appVersion);
  if (navigator.appName.indexOf('Netscape') != -1) {
    if (version >= NSvers) {if (NSpass>0) newURL = (NSpass==1)?URL:altURL;}
    else {if (NSnoPass>0) newURL = (NSnoPass==1)?URL:altURL;}
  } else if (navigator.appName.indexOf('Microsoft') != -1) {
    if (version >= IEvers) {if (IEpass>0) newURL = (IEpass==1)?URL:altURL;}
    else {if (IEnoPass>0) newURL = (IEnoPass==1)?URL:altURL;}
  } else if (OBpass>0) newURL = (OBpass==1)?URL:altURL;
  if (newURL) {
    window.location = unescape(newURL);
    document.MM_returnValue = false;
  }
}