title: JavaScript - function to load external JS files is needed
body: <p>Recently I added to my website facebook like button, twitter follow us button and google +1 button.  I want their JS scripts to load when I tell them to load.</p>
  
  <p>Therefore, I need a function that load external JS files. I don't need to know when the file finished to load (callback is not needed).</p>
  
  <p>I found some methods/functions on the Internet, but I want to know which would be the best choice for this situation?</p>
  
  <p><a href="http://ntt.cc/2008/02/10/4-ways-to-dynamically-load-external-javascriptwith-source.html" rel="nofollow">4 ways to dynamically load external JavaScript</a><br/>
  <a href="http://www.ejeliot.com/blog/109" rel="nofollow">Dynamically loading JS libraries and detecting when they're loaded</a><br/>
  <a href="http://www.nczonline.net/blog/2009/07/28/the-best-way-to-load-external-javascript/" rel="nofollow">The best way to load external JavaScript</a></p>
  
  <p>Thanks.</p>
  
  <p><strong>Edit</strong>:
  Added the methods/function I found.</p>