title: JQuery elements by tag name two times
body: <p>I want a specific child of a specific element, I don't know how to do this.<br>
  I tried the following:<br>
  <code>$(document.getElementById(tableID).getElementsByTagName("th :a")).each(function(){</code><br><br>
  <code>$(document.getElementById(tableID).getElementsByTagName("th").getElementsByTagName("a")).each(function(){</code><br><br>
  <code>$(document.getElementById(tableID).getElementsByTagName("th a")).each(function(){</code><br><br>
  <code>$(document.getElementById(tableID).getElementsByTagName("th").find("a")).each(function(){</code></p>
  
  <p>Is this even possible, or do I take it the wrong way?</p>