title: Getting nearest date that is after the specified date
body: <p>I have several date(strtotime) in a input value and want the nearest date that is after the specified date(my date) with jQuery or javascript. what do i do?</p>
  
  <pre><code>&lt;input id="DateBox" value="1481691600,1482037200,1482642000"&gt;
  </code></pre>
  
  <p><strong>my date:</strong></p>
  
  <pre><code>1481778000 =&gt; (2016-12-15)
  </code></pre>
  
  <p><strong>several date(strtotime):</strong></p>
  
  <pre><code>1481691600 =&gt; (2016-12-14)
  1482037200 =&gt; (2016-12-18)
  1482642000 =&gt; (2016-12-25)
  </code></pre>
  
  <p><strong>return:</strong></p>
  
  <pre><code>1482037200 =&gt; (2016-12-18)
  </code></pre>