interpret: function(value) { return value == null ? '' : String(value); }, 
String.interpret = function(value){ return value == null ? '' : String(value); } 
  interpret: function(value) {    return value == null ? '' : String(value);  },
4053	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4053/99db091466168b09f46c79ff71f0e07c7fd4a8db/prototype.js/clean/lib/prototype.js