How do I disable certain columns in for certain pages?

Hi Guys
Is there a way to disable left or right column for specific pages or categories?
My template is Gloss Black though
I would appreciate your help
Thanks

Can I ask for your help?
I am trying to disable the right column for some specific document products pages, I followed the note in the tpl_main_page.php file but I can only get to disable the column for the whole category with $cPath statement is there the same kind of statement for the "product page"?
Thanks for your patients.
Kind Regards
Franco

Similar to using $cPath for categories, you can use the following for products:

(int)$_GET['products_id']

DrByte:

Similar to using $cPath for categories, you can use the following for products:

(int)$_GET['products_id']

Thanks DrByte,
the string I am using is this:

if (in_array($cPath,explode(",",'355')) ) {
    $flag_disable_right = true;
  }

how would I use your suggestion?
Regards
Franco

You could try this:

  if (in_array((int)$_GET['products_id'] ,explode('14','82')) ) {
    $flag_disable_right = true;
  }