add: return null; 
context: function evalURL(str) {   if (url = helma.Http.evalUrl(str)) {      return String(url);   } else if (str.contains("@")) {      return "mailto:" + str;   } else {      return "http://" + str;   }}
meta: 993	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/993/d46237ae5555045222f493137c5c51dbcd7b4033/Global.js/clean/code/Global/Global.js