(function(){
"use strict";
var container, button, menu, links, i, len;
container=document.getElementById('site-navigation');
if(! container){
return;
}
button=container.getElementsByTagName('button')[0];
if('undefined'===typeof button){
return;
}
menu=container.getElementsByTagName('ul')[0];
if('undefined'===typeof menu){
button.style.display='none';
return;
}
menu.setAttribute('aria-expanded', 'false');
if(-1===menu.className.indexOf('nav-menu')){
menu.className +=' nav-menu';
}
button.onclick=function(){
if(-1!==container.className.indexOf('toggled')){
container.className=container.className.replace(' toggled', '');
button.setAttribute('aria-expanded', 'false');
menu.setAttribute('aria-expanded', 'false');
}else{
container.className +=' toggled';
button.setAttribute('aria-expanded', 'true');
menu.setAttribute('aria-expanded', 'true');
}};
links=menu.getElementsByTagName('a');
for(i=0, len=links.length; i < len; i++){
links[i].addEventListener('focus', toggleFocus, true);
links[i].addEventListener('blur', toggleFocus, true);
}
function toggleFocus(){
var self=this;
while(-1===self.className.indexOf('nav-menu')){
if('li'===self.tagName.toLowerCase()){
if(-1!==self.className.indexOf('focus')){
self.className=self.className.replace(' focus', '');
}else{
self.className +=' focus';
}}
self=self.parentElement;
}}
(function(container){
var touchStartFn, i,
parentLink=container.querySelectorAll('.menu-item-has-children > a, .page_item_has_children > a');
if('ontouchstart' in window){
touchStartFn=function(e){
var menuItem=this.parentNode, i;
if(! menuItem.classList.contains('focus')){
e.preventDefault();
for(i=0; i < menuItem.parentNode.children.length; ++i){
if(menuItem===menuItem.parentNode.children[i]){
continue;
}
menuItem.parentNode.children[i].classList.remove('focus');
}
menuItem.classList.add('focus');
}else{
menuItem.classList.remove('focus');
}};
for(i=0; i < parentLink.length; ++i){
parentLink[i].addEventListener('touchstart', touchStartFn, false);
}}
}(container));
})();