menu not showing

hi,

because I wanted to make two different menus, one showing on some pages and other showing on other pages I put a code like this in header.php

if (in_category( 'novice' ) ) {
	dazzling_header_menu();
}
elseif (is_page( 'domov' ) ) {
 	dazzling_header_menu();
}
elseif (is_page( 'home' ) ) {
 	dazzling_header_menu_ang();
}

And it worked fine. But today I was playing a bit with silder or something and my menu disappeared from category pages (‘novice’, ‘v medijih’)…
my page is available here.

Thank you for your answer.
Ana