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/**
* "Yet Another Multicolumn Layout" - YAML CSS Framework
*
* (en) Workaround for IE8 und Webkit browsers to fix focus problems when using skiplinks
* (de) Workaround für IE8 und Webkit browser, um den Focus zu korrigieren, bei Verwendung von Skiplinks
*
* @note inspired by Paul Ratcliffe's article
* http://www.communis.co.uk/blog/2009-06-02-skip-links-chrome-safari-and-added-wai-aria
* Many thanks to Mathias Schäfer (http://molily.de/) for his code improvements
*
* @copyright Copyright 2005-2012, Dirk Jesse
* @license CC-BY 2.0 (http://creativecommons.org/licenses/by/2.0/),
* YAML-CDL (http://www.yaml.de/license.html)
* @link http://www.yaml.de
* @package yaml
* @version 4.0+
* @revision $Revision: 617 $
* @lastmodified $Date: 2012-01-05 23:56:54 +0100 (Do, 05 Jan 2012) $
*/
(function () {
var YAML_focusFix = {
skipClass : 'ym-skip',
init : function () {
var userAgent = navigator.userAgent.toLowerCase();
var is_webkit = userAgent.indexOf('webkit') > -1;
var is_ie = userAgent.indexOf('msie') > -1;
if (is_webkit || is_ie) {
var body = document.body,
handler = YAML_focusFix.click;
if (body.addEventListener) {
body.addEventListener('click', handler, false);
} else if (body.attachEvent) {
body.attachEvent('onclick', handler);
}
}
},
trim : function (str) {
return str.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
},
click : function (e) {
e = e || window.event;
var target = e.target || e.srcElement;
var a = target.className.split(' ');
for (var i=0; i < a.length; i++) {
var cls = YAML_focusFix.trim(a[i]);
if ( cls === YAML_focusFix.skipClass) {
YAML_focusFix.focus(target);
break;
}
}
},
focus : function (link) {
if (link.href) {
var href = link.href,
id = href.substr(href.indexOf('#') + 1),
target = document.getElementById(id);
if (target) {
target.setAttribute("tabindex", "-1");
target.focus();
}
}
}
};
YAML_focusFix.init();
})();
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