In last time I try make single page application, but I don't have idea how create single page layout with sections.
so maybe you know how do it. Thanks!
What Ryan and Piterden are saying, depends what you want to do exactly. Maybe you can give us more details on what you want exactly.
No reason to use JS if you don't need to. You could loop through child pages and output their content as sections. You could use the Grid FT, etc.. There are a ton of different ways you could do this.
But I always thought, that single page application (SPA), implies under itself to have a routing. I mean, exactly different pages inside. URI in browser bar should to be changed sometimes, either it's not SPA, but just page.
@slavvko - I have built a few single page sites with Pyro 2.2.5 and made full use of the Streams Add-on Module for the sections. Things where Streams Module came on handy were for top section Slider, Testimonials and Gallery. Check out http://calvinhouse.com.au/
This site would be easy to do in PyroCMS 3. with the Streams Module Addon.