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<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>HTML ononline an onoffline attribute</title> </head> <body ononline="gueOnline()" onoffline="gueOffline()"> <p>Untuk menguji coba, silahkan putus-sambung koneksi internet Anda. kemudian reload halaman ini.</p> <script> function gueOnline() { alert ("Lagi online nih.. Lancar Jaya!"); } function gueOffline() { alert ("Waduh.. Sepertinya sedang offline nih."); } </script> </body> </html>
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