How to make Archive show only previous conferences?

[darwin]

Hi, I need to change archive.tpl to show only previous conferences, not current.
Here is part of archive.tpl:

<h3>{translate key="conference.archive"}</h3>
{if not $schedConfs->eof()}
{iterate from=schedConfs item=schedConf}
<h4><a href="{url schedConf=$schedConf->getPath()}">{$schedConf->getFullTitle()|escape}</a></h4>

Is it possible to change this template to show all conferences except current in Archive page?

[darwin]

I'm trying to write a plugin, witch compares schedconfs endDate and current date in order to make current conf not appear in archive page. First I'm trying to get endDates and display it in archive page.
This is the problem: to get schedconf enddate i'm using code:

Code: Select all

 function getEndDate() {
      $schedConf =& Request::getSchedConf();
         $endDate=date("Y-m-d",$schedConf->getSetting('endDate'));
         return $endDate;

In archive.tpl inserted smarty function witch returns result of my getEndDate() function, then I get error message: Fatal error: Call to a member function getSetting() on a non-object. Clear that Request::getSchedConf() depends on schedconf url.

Question: how to get schedconf endDate when visiting archive page?