Creating dynamic breadcrumb chains in Oracle APEX

This article is borrowed from one of the topics of my book (http://www.packtpub.com/oracle-apex-4-2-reporting/book) on Oracle APEX 4.2 reporting. Check the chapter by chapter description and the table of contents to know about the other discussions in my book. I wish to talk about the process to engineering breadcrumbs of varying lengths in this article. Let me explain the motive with an example.