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_s/js/skip-link-focus-fix.js

26 lines
771 B
JavaScript

( function() {
var is_webkit = navigator.userAgent.toLowerCase().indexOf('webkit') > -1;
var is_opera = navigator.userAgent.toLowerCase().indexOf('opera') > -1;
var is_ie = navigator.userAgent.toLowerCase().indexOf('msie') > -1;
if((is_webkit || is_opera || is_ie ) && typeof(document.getElementById) !== 'undefined' ) {
var eventMethod = (window.addEventListener) ? 'addEventListener' : 'attachEvent' ;
window[eventMethod]("hashchange", function(event) {
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);
}
})();