if (/javascript is disabled){
print "<br> This webapp needs javascript, please enableable
javascript and retry";
exit;
}else
#move on
}
I'd look into the NOSCRIPT tag:
http://www.w3.org/TR/html4/interact/scripts.html#edef-NOSCRIPT
HTH,
David
<noscript>Javascript disabled</noscript>
Atentamente,
J. Alejandro Ceballos Z.