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	    <tr><td>&nbsp;&nbsp;<a href="apre.html"><img border=0 src="../../img/page.gif"></a>&nbsp;</td>
	      <td><a href="apre.html">&lt;apre&gt;</a></td>
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	      <td><a href="aconf.html">&lt;aconf&gt;</a></td>
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	      <td><a href="expire_time.html">&lt;expire_time&gt;</a></td>
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       <b><font size=+2>URL tags</font></b>

	<p>URL tags are tags that somehow use or manipulate the URL or HTTP
headers. Among other things they manipulate;

<dl>
<p>
<dt><b>prestate options</b><dd>


Prestate options are a way to
present options in the URL, that will be persistent for a user over
several pages. A prestate for the options <tt>txt</tt> and
<tt>en</tt> would be stored as
<tt>http://www.roxen.com/(en,txt)/my.page</tt> in the URL. If you
use prestate options you must only use relative URLs in your links.

<p>
<dt><b>cookies</b><dd>


Cookies are a way for a web site to store a
small amount of information in the users' browsers. It is a much
better way than prestates to handle information that should be
persistent for a user over several pages.

<p>
<dt><b>authentification</b><dd>


HTTP can be used to transmit a user
name and a password through HTTP.

<p>
<dt><b>expire</b><dd>


It is possible to tell the browser, and any
proxy on the way to it, how long it is to cache a page.
</dl>

The URL tags are:

<dl>


<dt><b><a href=apre.html>&lt;apre&gt;</a></b><dd>

Adds or removes prestate options.

<p>

<dt><b><a href=aconf.html>&lt;aconf&gt;</a></b><dd>

Adds or removes config options.

<p>

<dt><b><a href=set_cookie.html>&lt;set_cookie&gt;</a></b><dd>

Sets a cookie that
will be stored by the user's browser.

<p>

<dt><b><a href=remove_cookie.html>&lt;remove_cookie&gt;</a></b><dd>

Removes a
cookie.

<p>

<dt><b><a href=auth-required.html>&lt;auth-required&gt;</a></b><dd>

Adds an HTTP
auth required header and return code, that will force the user to
supply a login name and password.

<p>

<dt><b><a href=expire_time.html>&lt;expire_time&gt;</a></b><dd>

Sets the
expire-time for the document.

<p>

<dt><b><a href=header.html>&lt;header&gt;</a></b><dd>

Adds an HTTP header to the
result from page.

<p>

<dt><b><a href=redirect.html>&lt;redirect&gt;</a></b><dd>

Adds an HTTP redirect
header and return code to the response from the page.

<p>

<dt><b><a href=return.html>&lt;return&gt;</a></b><dd>

Changes the HTTP return code
for this page.

<p>

<dt><b><a href=killframe.html>&lt;killframe&gt;</a></b><dd>

Prevents your page from
being placed in a frame,
</dl>


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