Actually, you can specify a cookie that gets sent to another domain. That's what the 'domain' parameter in CGI's cookie method is for. (If it's not specified, the default domain is the originating domain.)
Note, however, that browsers often have three settings for cookies; all cookies accepted, all cookies rejected, and cookies accepted except for cookies that aren't returned to the originating domain.
All that is irrelevant to the current question, of course; using LWP's get() method, you can send whatever cookies you want with the request.
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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>
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
Want more info? How to link or
or How to display code and escape characters
are good places to start.