1) on the search page, you will need to edit the names of the multiple select lists, add "[]" at the end. for example, change the "Center_Name" select list:
<select name="Center_Name" size="10" multiple="MULTIPLE" class="formItem" id="Center_Name">
to:
<select name="Center_Name[]" size="10" multiple="MULTIPLE" class="formItem" id="Center_Name">
2) on the results page, add the following at line 1:
<?php
if($_SERVER["REQUEST_METHOD"] == "GET") {
foreach($_GET as $key => $val) {
if(is_array($_GET[$key])) $_GET[$key] = implode(", ", $_GET[$key]);
}
}
?>