rem: while (element.parentNode && (!element.tagName || (element.tagName.toUpperCase() != tagName.toUpperCase()))) element = element.parentNode; return element; 
add: return element.match(expression) ? element : element.up(expression); 
context:   findElement: function(event, tagName) {    var element = Event.element(event);    while (element.parentNode && (!element.tagName ||        (element.tagName.toUpperCase() != tagName.toUpperCase())))      element = element.parentNode;    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