https://cocacolaswb.com/wp-content/themes/ccswb/js/navigation.js?ver=20151215

1/**
2 * File navigation.js.
3 *
4 * Handles toggling the navigation menu for small screens and enables TAB key
5 * navigation support for dropdown menus.
6 */
7 function openNav() {
8    document.getElementById("myNav").style.width = "100%";
9}
10
11function closeNav() {
12    document.getElementById("myNav").style.width = "0%";
13}
14
15 
16( function() {
17	var container, button, menu, links, i, len;
18
19	container = document.getElementById( 'site-navigation' );
20	if ( ! container ) {
21		return;
22	}
23
24	button = container.getElementsByTagName( 'button' )[0];
25	if ( 'undefined' === typeof button ) {
26		return;
27	}
28
29	menu = container.getElementsByTagName( 'ul' )[0];
30
31	// Hide menu toggle button if menu is empty and return early.
32	if ( 'undefined' === typeof menu ) {
33		button.style.display = 'none';
34		return;
35	}
36
37	menu.setAttribute( 'aria-expanded', 'false' );
38	if ( -1 === menu.className.indexOf( 'nav-menu' ) ) {
39		menu.className += ' nav-menu';
40	}
41
42	button.onclick = function() {
43		if ( -1 !== container.className.indexOf( 'toggled' ) ) {
44			container.className = container.className.replace( ' toggled', '' );
45			button.setAttribute( 'aria-expanded', 'false' );
46			menu.setAttribute( 'aria-expanded', 'false' );
47		} else {
48			container.className += ' toggled';
49			button.setAttribute( 'aria-expanded', 'true' );
50			menu.setAttribute( 'aria-expanded', 'true' );
51		}
52	};
53
54	// Get all the link elements within the menu.
55	links    = menu.getElementsByTagName( 'a' );
56
57	// Each time a menu link is focused or blurred, toggle focus.
58	for ( i = 0, len = links.length; i < len; i++ ) {
59		links[i].addEventListener( 'focus', toggleFocus, true );
60		links[i].addEventListener( 'blur', toggleFocus, true );
61	}
62
63	/**
64	 * Sets or removes .focus class on an element.
65	 */
66	function toggleFocus() {
67		var self = this;
68
69		// Move up through the ancestors of the current link until we hit .nav-menu.
70		while ( -1 === self.className.indexOf( 'nav-menu' ) ) {
71
72			// On li elements toggle the class .focus.
73			if ( 'li' === self.tagName.toLowerCase() ) {
74				if ( -1 !== self.className.indexOf( 'focus' ) ) {
75					self.className = self.className.replace( ' focus', '' );
76				} else {
77					self.className += ' focus';
78				}
79			}
80
81			self = self.parentElement;
82		}
83	}
84
85	/**
86	 * Toggles `focus` class to allow submenu access on tablets.
87	 */
88	( function( container ) {
89		var touchStartFn, i,
90			parentLink = container.querySelectorAll( '.menu-item-has-children > a, .page_item_has_children > a' );
91
92		if ( 'ontouchstart' in window ) {
93			touchStartFn = function( e ) {
94				var menuItem = this.parentNode, i;
95
96				if ( ! menuItem.classList.contains( 'focus' ) ) {
97					e.preventDefault();
98					for ( i = 0; i < menuItem.parentNode.children.length; ++i ) {
99						if ( menuItem === menuItem.parentNode.children[i] ) {
100							continue;
101						}
102						menuItem.parentNode.children[i].classList.remove( 'focus' );
103					}
104					menuItem.classList.add( 'focus' );
105				} else {
106					menuItem.classList.remove( 'focus' );
107				}
108			};
109
110			for ( i = 0; i < parentLink.length; ++i ) {
111				parentLink[i].addEventListener( 'touchstart', touchStartFn, false );
112			}
113		}
114	}( container ) );
115} )();