title: Convert a number into a Roman numeral in JavaScript
body: <p>How can I convert integers into <a href="http://en.wikipedia.org/wiki/Roman_numerals">roman numerals</a>?</p>
  
  <pre><code>function romanNumeralGenerator (int) {
  
  }
  </code></pre>
  
  <p>For example, see the following sample inputs and outputs:</p>
  
  <pre><code>1 = "I"
  5 = "V"
  10 = "X"
  20 = "XX"
  3999 = "MMMCMXCIX"
  </code></pre>
  
  <p>Caveat: Only support numbers between 1 and 3999</p>