function Check_Screen()
{
 if(screen.width<1024 || screen.height<768)
  return "WARNING";
 else
  return "OKAY";
}

function Check_Browser()
{
 if ((navigator.appName=="Netscape" && navigator.appVersion.substring(0,3)>="4.5") || 
     (navigator.appName=="Microsoft Internet Explorer" && navigator.appVersion.substring(0,3)>="4.0"))
  return "OKAY";
 else
  return "WARNING";
}

function Get_Browser()
{
 if(navigator.appName=="Netscape")
  return "NN";
 else if(navigator.appName=="Microsoft Internet Explorer")
  return "MIE";
 else
  return "other";
}