( 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 ) && document.getElementById && window.addEventListener ) { window.addEventListener( '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 ); } })();