rem: if (Element.hasClassName(child, className)) 
add: if (child.className.match(new RegExp("(^|\\s)" + className + "(\\s|$)"))) 
context: document.getElementsByClassName = function(className, parentElement) {  var children = (document.body || $(parentElement)).getElementsByTagName('*');  return $A(children).inject([], function(elements, child) {    if (Element.hasClassName(child, className))      elements.push(child);    return elements;  });}
meta: 3283	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3283/8a342036a177e27b9f776c900bbae999b6ce8e3c/prototype.js/clean/tracks/public/javascripts/prototype.js