In javascript, I want to select a certain property by it's name, which is stored in a string. I know that `window[someString]` is the way to go. It works when `someString = "somevariable"`, but unfortunately, my program will also have strings such as `someobject.someproperty`. This does not work.

So the question is, given code

```
someString = "one.two.three";
one = {
  two: {
    three: "This is the value that I want to get"
  }
};
// window[someString] does not work.

```

, how can I get the value of `one.two.three` using the value of `someString`, *without* using `eval`?