Question: I'm trying to understand a matlab code, but I'm not familiar with matlab much. Can someone please tell me what the meaning of x = [ x[i] ] is? 

Thanks in advance.

Answer: 
Jürgen Thelen is correct in his comment - it looks as though you are using a 3rd party extension - most likely this one from Ahead Works: <http://ecommerce.aheadworks.com/magento-extensions/help-desk-ultimate.html> - so you may want to ask them to fix the issue. Or if you do resolve it then maybe feed the fix back to them.

Regardless though, just find something unique (perhaps: 'hdu\_seed') in the code you are looking for and grep for it in your source code. The following recursively grep and show file names of any matches (run from your web root):

```
grep -lr "hdu_seed" .

```

If you cant use the command line to grep for whatever reason, use a tool such as notepad++ or netbeans to perform your search.

To narrow down your search, the code you are looking for will most likely be in a js file, js\_skin file, template file or being generated in a Block.
```
grep -r "clearInterval(window.HDUSeedIntId)" *

```

If that doesn't work you can use

```
 echo "<larger part of script>"
 read var_name
 grep -r $var_name *

```