Once you understand what your HTMLTree is, then you can start to look at using methods like ExecMethod and ExecFunction to deal with these objects.
Thanks for information guys. Our HtmlTrees are developed in house. I have requested information on how exactly they are created. I understand from Jamesso that we will need to use Java script to expand/ collapse trees?
Coudl you supply more information of possible on this and some sample code to expand a tree branch maybe?