Unique Template for each Custom Post Type Category

Hello! Need you help..

i am using this code in order to load different template depending on whic h categories..

<?php

$post = $wp_query->post;
if (in_category(‘logo’)) {
include(TEMPLATEPATH . ‘/single-webtemplate.php’);
} else {
include(TEMPLATEPATH . ‘/single-default.php’);
}

?>

my question is, how about if i am using Custom Post Type category?

i need a code something like this

<?php

$post = $wp_query->post;
if (post_type(‘logo’)) {
include(TEMPLATEPATH . ‘/single-webtemplate.php’);
} else {
include(TEMPLATEPATH . ‘/single-default.php’);
}

?>

Thanks in advance..please help me.. =)