function showLogin() {
   $('login_box').style.display='block';
}

function hideLogin() {
   $('login_box').style.display='none';
}

var empfehlen_loaded=0;
var http_empfehlen = createRequestObject();

function showEmpfehlen() {
   $('empfehlen_box').style.display='block';
   if(empfehlen_loaded==0){
   http_empfehlen.open('get', '/module_wg3/box_service/freund_empfehlen.php');
   http_empfehlen.onreadystatechange = handleResponseEmpfehlen;
   http_empfehlen.send(null);
   }
}

function hideEmpfehlen() {
   $('empfehlen_box').style.display='none';
}

function handleResponseEmpfehlen() {
   if(http_empfehlen.readyState == 4){
      var response_empfehlen = http_empfehlen.responseText;
      
         $('empfehlen_inhalt').innerHTML = response_empfehlen;
         empfehlen_loaded=1;
   }
}

var social_loaded=0;
var http_social = createRequestObject();

function showSocial() {
   $('social_box').style.display='block';
   if(social_loaded==0){
   http_social.open('get', '/module_wg3/box_service/social_network.php');
   http_social.onreadystatechange = handleResponseSocial;
   http_social.send(null);
   }
}

function hideSocial() {
   $('social_box').style.display='none';
}

function handleResponseSocial() {
   if(http_social.readyState == 4){
      var response_social = http_social.responseText;
      
         $('social_inhalt').innerHTML = response_social;
         social_loaded=1;
   }
}

var http_logout = createRequestObject();
var http_logout1 = createRequestObject();

function doLogout(){
   http_logout.open('get', '/module_wg3/box_service/logout.php');
   http_logout.onreadystatechange = handleResponseLogout;
   http_logout.send(null);
   
   http_logout1.open('get', '/module_wg3/box_service/logout1.php');
   http_logout1.onreadystatechange = handleResponseLogout1;
   http_logout1.send(null);
   
}

function handleResponseLogout() {
   if(http_logout.readyState == 4){
      var response_logout = http_logout.responseText;
      
         $('box_service').innerHTML = response_logout;
   }
}

function handleResponseLogout1() {
   if(http_logout1.readyState == 4){
      var response_logout1 = http_logout1.responseText;
      
         $('nav_top').innerHTML = response_logout1;
   }
}