Elements nested within a hidden parent element are not added to the model

[danhumphrey]

Some elements (tbody, thead, tfoot, tr, td etc...) (I need to identify a full list) are intrinsically hidden and their children are not included in the model when scanning.

e.g. The form elements found here:

http://www.executeautomation.com/demosite/index.html?UserName=&Password=&Login=Login