You're getting your server stuff confused with your client stuff. Anything that happens dynamically on the page after it's loaded will be done by Javascript. The Perl script that creates the page will need to print that Javascript along with the HTML of the page. (Or it could be in a separate .js file that's included by the page.) So figure out what your Javascript needs to be by creating a static HTML test page with radio buttons that do what you want; then when that works, have your CGI print what you came up with.

I would highly recommend that you look into jQuery. It's a framework for doing dynamic page manipulation that sits on top of Javascript and eliminates a lot of the frustration of the language. This kind of thing is a one-liner in jQuery.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.