themes-wordpress/libretto/js/skip-link-focus-fix.js
2018-02-27 14:27:44 +11:00

19 lines
708 B
JavaScript

(function() {
var is_webkit = navigator.userAgent.toLowerCase().indexOf( 'webkit' ) > -1,
is_opera = navigator.userAgent.toLowerCase().indexOf( 'opera' ) > -1,
is_ie = navigator.userAgent.toLowerCase().indexOf( 'msie' ) > -1;
if ((is_webkit || is_opera || is_ie) && 'undefined' !== typeof(document.getElementById)) {
var eventMethod = (window.addEventListener) ? 'addEventListener' : 'attachEvent';
window[eventMethod]('hashchange', function() {
var element = document.getElementById( location.hash.substring( 1 ) );
if (element) {
if ( ! / ^(?:a|select|input|button|textarea)$/i.test( element.tagName )) {
element.tabIndex = -1; }
element.focus();
}
}, false);
}
})();