Dynamic Forms, Javascript (what else!) and WWW::Mechanize

Hi everyone,

[ Apologies is this is the repeat of a topic which has been addressed 
earlier, but I couldn't find it ]

I am trying to use $mech to log in to www.sprint.com. This site was 
recently merged with the Nextel site, so the site now presents a Form 
asking you which service you want to log into. A javascript is executed 
and depending on your selection it displays a series of fields which 
allow you to log into that site.

Thanks to using Tamper Data, I know which variables I need to post. The 
problem is that when the page is first displayed (i.e. before the 
javascript [doesn't] execute, these form variables don't exist. They are 
apparently created by the javascript. So when I try

    $mech->field('min', $telno ) ;

I get an error from HTML::Form:

    No such field 'min' at
    /home/mmtest/local/lib/perl5/site_perl/5.8.5/WWW/Mechanize.pm line 1030
     at /home/mmtest/local/lib/perl5/site_perl/5.8.5/HTML/Form.pm line 402

So it looks like I just need to convince HTML::Form to create some new 
fields, but I couldn't find how to do this. Can anybody explain? Is 
there are better way to address this problem?

Thanks in advance!

Peter

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Peter Stevens
Get you Cell Phone costs under control!          www.MinuteWatcher.com