help with learning breadcrumbs

[ashutoash]

I am trying to use breadcrumbs in my web page. I have come across jquery plugins which need the links to be defined before hand and then can be breadcrummed. I have links that are generated via ajax calls and I am looking into a way of breadcrumbing them some how and these links can be arbitrary but they do follow a lineage. Can someone point me to proper tutorials or blogs which can teach me breadcrumbing from scratch. I was looking at http://www.somethinghitme.com/projects/jCrumb/index.html?t=JCrumb%20Main and it did not help me much apart from the fact that there is a plugin that can do this. Thanks much in advance.