Pros and cons of hosted scripts
<p>I have seen some developers use hosted scripts to link their libraries.</p>

<p><code>cdn.jquerytools.org</code> is one example.</p>

<p>I have also seen people complain that a hosted script link has been hijacked.</p>

<p>How safe is using hosted scripts in reality?  Are the scripts automatically updated? For example, if jQuery 5 goes to 6 do I automatically get version 6 or do I need to update my link?</p>

<p>I also see that Google has a large set of these scripts setup for hosting.  </p>

<p>What are the pros and cons?</p>
