CGI::AJAX inside CGI::AJAX

[VIVIsectI]

First time posting so I appreciate any replies and patience required to deal with me.

Clicking a button builds some additional HTML. Now, included in that additional HTML is another button. I want the new button to perform some additional task using CGI::AJAX as well. I've got no problem getting the initial CGI::AJAX setup and working, but I'm not sure where to start on getting the second button declared with a new subroutine to parse.

Some sample code.

After clicking whoohoo I want to now click whoopy and change the 'innerDiv' from poop to tinkle.

#!/usr/bin/perl
    use strict;
    use warnings;
    use CGI ':standard';
    use CGI::Ajax;

    # use CGI::Carp qw(fatalsToBrowser); # Uncomment for debugging
    
    ajaxifyView();
    
    sub ajaxifyView {
        my $cgi = new CGI;
        my $ajx = new CGI::Ajax ( 'viewsub' => \&subViewSub );
        $ajx->JSDEBUG(0);
        print $ajx->build_html ($cgi, \&buildHTML);
    }
    
    sub buildHTML {
        my $q = new CGI;
        my $html;
        $html .= $q->start_html;
        $html .= $q->start_table;
        $html .= $q->Tr(
            $q->td($q->textfield(-name=>'pantyhoes', -id=>'pantyhoes',
+ -value=>'sometext'))
        );
        $html .= $q->Tr(
            $q->td($q->button(-name=>'whoohoo', -onclick=>"viewsub(['p
+antyhoes'], ['DisplayDiv'])")),
            $q->td($q->div({-id=>'DisplayDiv'}, 'ReplaceMe'))
        );
        $html .= $q->end_table;
        $html .= $q->end_html;
        
        return $html;
    }
    
    sub subViewSub {
        my $q = new CGI;
        my $innerHTML;
        $innerHTML .= $q->hidden(-name=>'smoosh', -value=>"tinkle");
        $innerHTML .= $q->button(-name=>'whoopy', -onclick=>"viewsub([
+'smoosh'], ['innerDiv'])");
        $innerHTML .= $q->div({-id=>'innerDiv'},"poop");
        
        return ($innerHTML);
    }