I am assuming here that you mean dialogues that appear on the webpage rather than a dialogue window that displays the web page.
I don't think this can be done by nHTMLn.dll, though I suppose Necroman or someone who has tried this would be able to confirm this more accurately than I can.
Dialogues in web pages are normally generated using HTML code in the page itself. What did you want the dialogue to do?
Also, make sure you read the help file that came with nHTMKn.dll. It is very well written and explains everything in plain English. I have to admit I haven't read it myself for a while. The last time I installed this .dll was about 6 months ago.
