title: ExtJS4 store, filter 1 field by multiple values
body: <p>Say i have a some store with some data:</p>
  
  <p><code>id value</code><br />
  <code>1  one</code><br />
  <code>2  two</code><br />
  <code>3  three</code><br />
  <code>4  four</code><br /></p>
  
  <p>and i'd like to filter it by ID like:
  <code>store.filter("id", "[1, 4]");</code></p>
  
  <p>Is it possible?
  Is there also an another way to get a few values from store by <code>id</code>?</p>