<html> <head> <script language="JavaScript" type = "text/javascript"> <!-- if (screen.width == 640){ alert("Resolution is 640 by 480"); } else if(screen.width == 800) { alert("Resolution is 800 by 600"); } else if (screen.width == 1024){ alert("Resolution is 1024 by 768"); } else if (screen.width > 1024){ alert("Resolution is greater than 1024 by 768"); } //--> </script> </head> <body> </body> </html>