Hello dear users! i can't find enywhere a simple text menu with submenus like this. when i click on button 3 - submenu is opening. i need all menu buttons and links are in 1 file, not in every page like index.html, fles.html, about.html
Button 1
Button 2
Button 3
subbutton 1
subbutton 2
subbutton 3
.......
Button 4
Button 5

i have a simple html site and i realy need that menu, sorry for my bad english and sorry for my stupid question

check this code
http://www.smartmenus.org/

The example and CSS provided here are really easy for submenus.

http://sperling.com/examples/menuh/

You should be able to use it and manipulate the code / css to however you want.

I use Dynamic Drive at times for codes like this, you may want to check them out.
http://www.dynamicdrive.com/

Hope this helps you out.

i need all menu buttons and links are in 1 file, not in every page like index.html, fles.html, about.html

So, what you need to use to do that is SERVER-SIDE INCLUDES.