rem: if (element.checked) return [element.name, element.value]; 
add: return element.checked ? element.value : null; 
context:   inputSelector: function(element) {    if (element.checked)      return [element.name, element.value];  },
meta: 1000	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1000/53dfa93e53bccf5af1729cbdce88cb70e1ffcca5/prototype.js/buggy/public/javascripts/prototype.js