rem: Element.classNames(element).add(className); 
add: if (!element.hasClassName(className)) element.className += (element.className ? ' ' : '') + className; 
context:   addClassName: function(element, className) {    if (!(element = $(element))) return;    Element.classNames(element).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