[wjbrewer]

$main is a smarty variable that is assigned in a PHP file. For example...your product.php page has a variable of 'product'. Look for this in the PHP file

PHP Code:

$main = "product";
$smarty->assign("main",$main); 


or

PHP Code:

$smarty->assign ("main", "product"); 


You can then use an {if} {else} statement to load different templates.

For example:

{if $main eq 'product'} {include file="skin1/customer/main/product.tpl"} {else} {include file="skin1/different.tpl"}