3. The method of claim 2 , wherein at least one page in the plurality of pages is arranged according to HTML and the at least one root level is associated with an HTML root tag.
3. The method of claim 2 , wherein at least one page in the plurality of pages is arranged according to HTML and the at least one root level is associated with an HTML root tag. 4. The method of claim 3 , wherein the levels in the hierarchical structure of the at least one page are associated with levels of nodes in the HTML structure of the page.