You are to take code of this form and copy it.
And you are to fix path to the action of the form if necessary.
You are not to be a professional for that. Understanding of html is enough.

But what if there is no form but a pop-up window appears and requests user name and password?

Does it request this all orally? Without user name and password input form?

mmwfan, isn’t there any form in the pop-up window?

The pop-up window is Apache authorization, isn’t it?

The whole process of information transmission can be traced but I don’t like being involved into this.

Would you like to have someone else involved?

the window also contains administration elements and so nothing prevents you from transmitting parameters using window.

Winamp also contains administration elements but it doesn’t mean that I can transmit something to my site by its means.
First you are to know for sure what and where you have and after that ask questions.

I don’t ask anyone to be involved into this. I just answered the question of tucansam. And I just wanted to get an answer from those who have already done something like this before.

Would you like to have someone else involved?
Winamp also contains administration elements but it doesn’t mean that I can transmit something to my site by its means.
First you are to know for sure what and where you have and after that ask questions.

Winamp has nothing to do with it. I was talking about the pop-up window in which user name and password are entered.