Breadcrumbs are nice way to display the connection from the root. It gives you a hierarchical representation with click able links so that user can visit upper links easily. Breadcrumbs can be added in templates by using the object returned by $mainframe->getPathWay(). The member function addItem() allows to add a breadcrumb with the title of choice.
There are two parameters used for breadcrumbs creation process, and the first parameter is the title for the breadcrumb and the second parameter is the URL. If we do not need the breadcrumb to work like a link then we need to simply pass a blank string and then it will not work like a click able URL. This term is useful for hierarchical components where we have subcategories: we can generate a link to each and then end with the title of the current record or category.