If you wan't to load another page, you have to use javascript (ajax)

so you need to know about DOM (html) and ajax(javascript+http)

These might help
http://search.cpan.org/dist/CGI-Ajax/MANIFEST
http://www.cgi-app.org/index.cgi?AjaxInfo
Using Ajax from Perl - Perl.com
http://stackoverflow.com/questions/6176341/ajax-applications-with-perl-backend-how-to
Using JQuery and AJAX in Mojolicious
Using JQuery and AJAX in Mojolicious
https://github.com/yko/mojolicious-example-ajax
on trying to debug javascript through perlmonks
Firebug
http://api.jquery.com/
learn about the internet,Web Programming: For Beginners, to get an overall picture of how the internet works, how tcp/ip, sockets, html, ajax, all fit together.
An AJAX CRUD Interface with Catalyst and jQuery
http://thedailywtf.com/Articles/Ajax-in-the-Underworld.aspx

I really liked the video

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