rem: if (arguments.length == 1) 
add: if (arguments.length == 1) 
context: function $() {  var elements = new Array();  for (var i = 0; i < arguments.length; i++) {    var element = arguments[i];    if (typeof element == 'string')      element = document.getElementById(element);    if (arguments.length == 1)       return element;    elements.push(element);  }  return elements;}
meta: 3283	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3283/9867ca01ad65827d23c0bf6cc14d8a64137e927d/prototype.js/buggy/tracks/public/javascripts/prototype.js