https://blog.aginglifecare.org/wp-content/themes/alcablogg/js/functions.js?ver=2014-06-08

1/**
2 * Functionality specific to Twenty Thirteen.
3 *
4 * Provides helper functions to enhance the theme experience.
5 */
6
7( function( $ ) {
8	var body    = $( 'body' ),
9	    _window = $( window );
10
11	/**
12	 * Adds a top margin to the footer if the sidebar widget area is higher
13	 * than the rest of the page, to help the footer always visually clear
14	 * the sidebar.
15	 */
16	$( function() {
17		if ( body.is( '.sidebar' ) ) {
18			var sidebar   = $( '#secondary .widget-area' ),
19			    secondary = ( 0 === sidebar.length ) ? -40 : sidebar.height(),
20			    margin    = $( '#tertiary .widget-area' ).height() - $( '#content' ).height() - secondary;
21
22			if ( margin > 0 && _window.innerWidth() > 999 ) {
23				$( '#colophon' ).css( 'margin-top', margin + 'px' );
24			}
25		}
26	} );
27
28	/**
29	 * Enables menu toggle for small screens.
30	 */
31	( function() {
32		var nav = $( '#site-navigation' ), button, menu;
33		if ( ! nav ) {
34			return;
35		}
36
37		button = nav.find( '.menu-toggle' );
38		if ( ! button ) {
39			return;
40		}
41
42		// Hide button if menu is missing or empty.
43		menu = nav.find( '.nav-menu' );
44		if ( ! menu || ! menu.children().length ) {
45			button.hide();
46			return;
47		}
48
49		button.on( 'click.twentythirteen', function() {
50			nav.toggleClass( 'toggled-on' );
51		} );
52
53		// Fix sub-menus for touch devices.
54		if ( 'ontouchstart' in window ) {
55			menu.find( '.menu-item-has-children > a' ).on( 'touchstart.twentythirteen', function( e ) {
56				var el = $( this ).parent( 'li' );
57
58				if ( ! el.hasClass( 'focus' ) ) {
59					e.preventDefault();
60					el.toggleClass( 'focus' );
61					el.siblings( '.focus' ).removeClass( 'focus' );
62				}
63			} );
64		}
65
66		// Better focus for hidden submenu items for accessibility.
67		menu.find( 'a' ).on( 'focus.twentythirteen blur.twentythirteen', function() {
68			$( this ).parents( '.menu-item, .page_item' ).toggleClass( 'focus' );
69		} );
70	} )();
71
72	/**
73	 * Makes "skip to content" link work correctly in IE9 and Chrome for better
74	 * accessibility.
75	 *
76	 * @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/
77	 */
78	_window.on( 'hashchange.twentythirteen', function() {
79		var element = document.getElementById( location.hash.substring( 1 ) );
80
81		if ( element ) {
82			if ( ! /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) {
83				element.tabIndex = -1;
84			}
85
86			element.focus();
87		}
88	} );
89
90	/**
91	 * Arranges footer widgets vertically.
92	 */
93	if ( $.isFunction( $.fn.masonry ) ) {
94		var columnWidth = body.is( '.sidebar' ) ? 228 : 245;
95
96		$( '#secondary .widget-area' ).masonry( {
97			itemSelector: '.widget',
98			columnWidth: columnWidth,
99			gutterWidth: 20,
100			isRTL: body.is( '.rtl' )
101		} );
102	}
103} )( jQuery );