Using Javascript to set dynamic value for forms

[eluser]boony[/eluser]
Hi,

I'm trying to pass a value to a hidden field in a form dynamically with javascript. Essentially, the user needs to select a number of images to upload to server and a form is built dynamically with javascript. The number of files is then passed to the hidden field by setting the value with set attribute. This value along with all other form values should then be posted to the controller.

Now, this has all been tested and works outside of CI. I can get a simple script to run and upload the files and update the database no problem. However, when I implement the same code within CI I can't get the hidden value to be set to the number of files.

I am setting the value of the hidden fields like so:

Code:

document.getElementById("filesnum").setAttribute("value", $filesnum);

where $filesnum is the javascript value (not a php value

This is an urgent job so if anyone has any thoughts they would be most welcome.

Cheers
Boony