You can do this in pure Perl, too... you just have to refresh the screen following each selection. I might do it something like this:
my %options = (
main => ["option1", "option2", "option3"],
option1 => ["option1a", "option1b", "option1c"],
option2 => ["option2a", "option2b", "option2c"],
option3 => ["option3a", "option3b", "option3c"]
);
if ( !param() ) {
$values_ref = $options{'main'};
} else {
$values_ref = $options{param('distros_menu')};
}
print start_form();
print popup_menu(
-name => 'distros_menu',
-values => $values_ref,
);
print submit('which_distro_button');
print endform;
But that takes you down the road of outputting HTML via CGI.pm, which will eventually make you want to take your own life. Better would be to use a template like HTML::Template and just output different values to the template on each refresh.
Best solution though is probably either a pure JS or an AJAX-style solution (as already suggested), as it presents a better experience for the user.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.