title: javascript grab part of a string after a . (dot)
body: <p>I'm unable to read regex. </p>
  
  <p>Let's say we have this string: "mydomain.bu.pu" and I want to grab the ".bu.pu" part of it;</p>
  
  <p>I'm thinking about using something like:</p>
  
  <p>indexOf and later substr ... But I confess I'm kind of lost...</p>
  
  <p>Any help please? :D</p>
  
  <p>Thanks in advance,
  MEM</p>