PHP CustomConfigurationsPath Problem

I cannot get this to work. No matter how I set it up, prideconfig.js will not load. I've placed in the the fckconfig.js as:

FCKConfig.CustomConfigurationsPath = '/prideconfig.js' ;

and I have tried to load it via PHP:

$oFCKeditor->Config['CustomConfigurationsPath'] = '/prideconfig.js';