rem: Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className); return element; 
add: return element[element.hasClassName(className) ? 'removeClassName' : 'addClassName'](className); 
context:   toggleClassName: function(element, className) {    if (!(element = $(element))) return;    Element.classNames(element)[element.hasClassName(className) ? 'remove' : 'add'](className);    return element;  },
meta: 9100	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9100/2d4247a14ff4ce25ad80cbc65b787dfde7ddb16e/prototype.js/buggy/typo3/contrib/prototype/prototype.js