During the building some webpage where users are able to register themselves through social networks, I stuck with a stupid problem related with facebook logout procedure. And all answers were hidden in... number sign "#" within anchor "href" element.
This one gives login popup
< a href="#" class="logoutFB" onclick="FB.logout()"> logout </a >
This one works fine, reloads page and is without popup
< a href="" class="logoutFB" onclick="FB.logout()"> logout </a >
This one gives login popup
< a href="#" class="logoutFB" onclick="FB.logout()"> logout </a >
This one works fine, reloads page and is without popup
< a href="" class="logoutFB" onclick="FB.logout()"> logout </a >