Ok, this is a completely unordered list, but I'll point out what I notice first pass:

• You don't use strict, and you aren't localizing your variables with my or local
• You initialize your scalar variables with empty sets. While this isn't really an error, it's not needed. When creating a variable, it is quite all right to simply declare its existance, perl initializes it to a default empty value.
• You clear your variables the same way you're initializing them. If you truly wish to clear them, either set them to '', 0 or use undef. Not to say that your method is by definition wrong, just that it isn't commonly done.
• In cases with nested loops and the loop control operators, it's usually best to name your loops just in case.
• Around line 33 you use a chomp statement, but I suspect something got cut out, because you completely loose me there.

Nothing horrible, and easily fixed.
On a related note, I, personally, couldn't get your code to run, but I suspect that's just because of the way you entered it into the text box.


Edit: Minor correction, expanded on a statement.

---

---

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.