rem: return this.expression; 
add: return $A(this).join(' '); 
context:   toString: function() {    return this.expression;  }
meta: 9100	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/9100/2d4247a14ff4ce25ad80cbc65b787dfde7ddb16e/prototype.js/buggy/typo3/contrib/prototype/prototype.js