title: Jquery how to find last child
body: <p>For those who know JQuery - must be effort less question - 
  I'd like to get the elemenet which is the <b>last</b> child of another element (of type 'input' that I know its ID ('myID'). <br>
  What is the correct query:
  I tried: </p>
  
  <pre><code>$("input:last-child", $("#myID")); 
   $("#myID input:last-child") 
  </code></pre>
  
  <p>But it didn't work</p>