title: strange markup in HTML (HTML_ATR HTML_ELM, SYN_ROW, JS_KEY, etc..)
body: <p>I've build a website for a client and as we all know 'it works just fine on my machine' :-) as it does on several machines at my clients location. But they have (so far) 3 pc's on wich some errors occur, like cannot find ElementById. These machines are normal up-to-date windows machines running IE8. </p>
  
  <p>When comparing the html-source of the page on my machine with one of a machine on wich the error occurred I found that there seems to be a s--tload of html injected. Loads of DIVS and SPAN around attributes and elementID's and even javascript :</p>
  
  <p>Normal:</p>
  
  <pre><code>&lt;script type="text/javascript" language="JavaScript"&gt;
  </code></pre>
  
  <p>After injection: </p>
  
  <p><b>script</b> will be surrounded with a SPAN tag using class 'HTML_ELM'<br>
  <b>type</b> will be surrounded with a SPAN tag using class 'HTML_ATR'<br>
  <b>"text/javascript"</b> will be surrounded with a SPAN tag using class 'HTML_VAL'</p>
  
  <pre><code>&lt;&lt;span class="HTML_ELM"&gt;script&lt;/span&gt; &lt;span class="HTML_ATR"&gt;type&lt;/span&gt;=&lt;span class="HTML_VAL"&gt;"text/javascript"&lt;/span&gt; &lt;span class="HTML_ATR"&gt;language&lt;/span&gt;=&lt;span class="HTML_VAL"&gt;"JavaScript"&lt;/span&gt;&gt;
  </code></pre>
  
  <p>even ID's of html elements are surrounded with these SPAN tags (<code>class='JS_STR'</code>) probably causing the problem of cannot find ElementById</p>
  
  <p>I have no idea why this is happening, I also cannot find a cause on Google when searching for these weird classnames used by the injected <code>SPAN</code>/<code>HTML</code> tags (<code>HTML_VAL</code>, <code>HTML_ELM</code>, <code>HTML_VAL</code>).</p>
  
  <p>Does anyone here know what could be causing this ?</p>
  
  <p>many thanks,
  Jurjen.</p>