the probem is the validation:
<?php
if (isset($_POST["simon_1_ATC"]) || isset($_POST["simon_1_ATC_x"])) {
$WAFV_Redirect = "";
$_SESSION['WAVT_productdetails_186_Errors'] = "";
if ($WAFV_Redirect == "") {
$WAFV_Redirect = $_SERVER["PHP_SELF"];
}
$WAFV_Errors = "";
//$WAFV_Errors .= WAValidateNLE(((isset($_POST["selectoptioncolour"]))?$_POST["selectoptioncolour"]:"") . "",((isset($_POST["selectoptioncontrastcolour"]))?$_POST["selectoptioncontrastcolour"]:"") . "",true,1);
// $WAFV_Errors .= WAValidateStain(((isset($_POST["selectoptioncolour"]))?$_POST["selectoptioncolour"]:"") . "",((isset($_POST["selectoptioncontrastcolour"]))?$_POST["selectoptioncontrastcolour"]:"") . "",true,2);
if ($WAFV_Errors != "") {
PostResult($WAFV_Redirect,$WAFV_Errors,"productdetails_186");
}
}
?>
one i commented out the validation the add to cart button began working.
looks like you have some custom validation rules that aren't working for this product.