<div>
issue is you selected run the code on window.onload, which messes everything...<br />
if you put that one in &lt;script&gt;...&lt;script&gt; tags, it will work<br />
<br />
your code is wrapped with<br />
<br />

<pre><code id="code-20-42320881-1">window.onload=function(){
...
}</code></pre>
<br />
jsFiddle adds this if you select <b>onLoad</b>
</div>


issue is you selected run the code on window.onload, which messes everything...
if you put that one in <script>...<script> tags, it will work

your code is wrapped with



window.onload=function(){
...
}


jsFiddle adds this if you select onLoad

<div>
How did you get it to work in your fiddle though? &nbsp;It's exactly like mines but yours works and mines doesn't.
</div>


How did you get it to work in your fiddle though?  It's exactly like mines but yours works and mines doesn't.

<div>
:) magic<br />
<br />
<a href="https://filedb.experts-exchange.com/incoming/2017/10_w40/1197793/Screenshot---06_10_2017---1_50_46-AM.png" target="_blank" title="Screenshot---06_10_2017---1_50_46-AM.png (20 KB)"><img alt="Screenshot---06_10_2017---1_50_46-AM.png" class="file-block lazyload" style="max-width: 409px;" data-src="https://filedb.experts-exchange.com/incoming/2017/10_w40/1197793/Screenshot---06_10_2017---1_50_46-AM.png" /></a>
</div>


:) magic

Screenshot---06_10_2017---1_50_46-AM.pnghttps://filedb.experts-exchange.com/incoming/2017/10_w40/1197793/Screenshot---06_10_2017---1_50_46-AM.png

Screenshot---06_10_2017---1_50_46-AM.png

<div>
<div class="content wysiwyg-content">
Anybody know why the onchange() isn't working? &nbsp;This is the error I get<br />
<b>Uncaught ReferenceError: getProj is not defined<br />
&nbsp; &nbsp; at HTMLSelectElement.onchange<wbr /></b><br />
<br />
<a href="http://jsfiddle.net/isogunro/r6e4gm34/" rel="ugc">http://jsfiddle.net/isogunro/r6e4gm34/</a><br />
<br />

<pre><code id="code-10-29060996-1">&lt;select id=&quot;contracts&quot; onchange=&quot;getProj(this)&quot;&gt;
  &lt;option value=&quot;&quot;&gt;&lt;/option&gt;
&lt;/select&gt;
&lt;span id=&quot;ctType&quot;&gt;&lt;/span&gt;


function getProj(sel) {
var ct = document.getElementById(&quot;ctType&quot;);
ct.innerHTML = contractAry[2].contractType;
	alert(sel.value);
  
}</code></pre>
</div>
</div>


Anybody know why the onchange() isn't working?  This is the error I get
Uncaught ReferenceError: getProj is not defined
    at HTMLSelectElement.onchange

http://jsfiddle.net/isogunro/r6e4gm34/

(CODE)

onchange not working

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

JavaScript Object Notation, or JSON, is human-readable text used when transmitting data objects consisting of attribute:value pairs between a server and a web application as an alternative to XML. JSON, while it is originally derived from JavaScript, is a language-independent data format. Code for parsing and generating JSON data is available in many programming languages.