The verb should return a list of strings or a single string to represent a html page. starting with and ending with .
Some points to note:
the player variable is not conntected to an object, but to an incomming connection, ie #-47, so you can't call any verbs on it. Some functions will work on these object numbers, such as connection_name(player).
If your html verb crashes, or takes an unusually long time, the server will close the connection (but not kill the verb)