var email = " hogehoge@example.com\n";
  var local = "";
  var domain ="";

if (email.match(/\s*(\S+?)@([^@]+)\s*/)){
    local  = RegExp.$1;
    domain = RegExp.$2;
  }

print(local);
print(domain);

alert("email="+email+", local="+local+"domain="+domain);