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

function VersionNavigateur(Netscape, Explorer)
{
if ((navigator.appVersion.substring(0,3) >= Netscape && navigator.appName == 'Netscape') ||
(navigator.appVersion.substring(0,3) >= Explorer && navigator.appName.substring(0,9) == 'Microsoft'))
return true;
else return false;
}