I've got another question pertaining to the treeview plugin.  I'm using an async tree view to represent listing categories in a classified add site.  My server side component is a classic asp page (I know, I know).  I am representing the leaves of this tree as radio buttons, that when selected should be used to update the category that describes a particular listing.

Here's the problem, since the radio buttons are not on the page when it is initially rendered, I can't get the value of the radio buttons when I post back since they are not on the page when the form is initially rendered into the DOM.  I thought I might be able to embed javascript (onclick) on each radio to update a hidden field's value, however it appears that embedding javascript into JSON makes it invalid :(.

Can some please confirm my suspicion about the invalid JSON, or alterntely propose a different solution to getting the selected radio button's value?