in each results page there will be a section of code similar to:
if (1 == 1) {
$_SESSION["WADbSearch1_articlestable_Results"]=$WADbSearch1->whereClause;
}
this is storing the search in the session named WADbSearch1_articlestable_Results
each result page may use a diferant session name, so check the code.
then create a link:
<a href="articlestable_Results.php?search=clear">Reset Search</a>
and add an if statement at line 1 of the page to clear the search session if the querystring is present:
<?php
if(isset($_GET['search']) || $_GET['search'] == 'clear') {
unset($_SESSION["WADbSearch1_articlestable_Results"]);
}
?>