Get WordPress theme menu name in slug format from location parameter

/*-----------------------------------------------------------
	Get a theme menu name in slug format based on a 
	location parameter.
-----------------------------------------------------------*/
function sleek_get_theme_menu_name($theme_location)
{
	if(!$theme_location) return false;
 
	$theme_locations = get_nav_menu_locations();
	if(!isset($theme_locations[$theme_location])) return false;
 
	$menu_obj = get_term($theme_locations[$theme_location],'nav_menu');
	if(!$menu_obj) $menu_obj = false;
	if(!isset($menu_obj->name)) return false;
 
	// Make a slug out of the menu name now we know it exists
	$menu_name = strtolower($menu_obj->name);
	$menu_name = str_replace(" ","-", $menu_name); 
 
	return $menu_name;
}