ok Thanks so much for responding. I think I just found a fix for it by putting this code into the functions.php and changing afew items. For my case I have two custom post types 'motion' 'still'.
here is some code I found...
// As of WP 3.1.1 addition of classes for css styling to parents of custom post types doesn't exist.
// We want the correct classes added to the correct custom post type parent in the wp-nav-menu for css styling and highlighting, so we're modifying each individually...
// The id of each link is required for each one you want to modify
// Place this in your WordPress functions.php file
function remove_parent_classes($class)
{
// check for current page classes, return false if they exist.
return ($class == 'current_page_item' || $class == 'current_page_parent' || $class == 'current_page_ancestor' || $class == 'current-menu-item') ? FALSE : TRUE;
}
function add_class_to_wp_nav_menu($classes)
{
switch (get_post_type())
{
case 'motion':
// we're viewing a custom post type, so remove the 'current_page_xxx and current-menu-item' from all menu items.
$classes = array_filter($classes, "remove_parent_classes");
// add the current page class to a specific menu item (replace ###).
if (in_array('menu-item-592', $classes))
{
$classes[] = 'current_page_parent';
}
break;
case 'still':
// we're viewing a custom post type, so remove the 'current_page_xxx and current-menu-item' from all menu items.
$classes = array_filter($classes, "remove_parent_classes");
// add the current page class to a specific menu item (replace ###).
if (in_array('menu-item-348', $classes))
{
$classes[] = 'current_page_parent';
}
break;
// add more cases if necessary and/or a default
}
return $classes;
}
add_filter('nav_menu_css_class', 'add_class_to_wp_nav_menu');
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