How do you know if a website is a DHTML website? What in the source code tells you.?

Question

I know a DHTML site uses CSS HTML or Markup language, DOM and some sort of script Java or VB and so forth.

Answer 1

Just look at the source code!!!!

Answer 2

Well, DHTML is an AWFULLY broad term, and it seems like you have the idea. Honestly a web page with an image rollover qualifies technically. And all of the modern AJAX stuff is just DHTML with extra calls to the server between page loads.

By behavior: Does it do anything plain HTML doesn't do? Can you drag anything around? Make anything expand or collapse? Have non-flash animation on-page? Images change (and they're not animated gifs)?

By source code: Is there Javascript? Look in the header for