ImageUploader: User Quota

I have modified the index.php to do the following.

Ive set the user quota to 20 images for a particular user. To do this ive created a DB table (mysql) which holds the user quota value and the images and number of images a particular user has uploaded. The first time this works great, because there arent any pics and the user can select 20 images. It gives a warning and doesnt allow the user to add any more images.

With the above , i uploaded 20 images. At the this point the user quota has been met. Now for this user, before he can upload any more pics, i get all the values from the database and take the number he has uploaded and the max number subtract and that is now the user quota. So say i uploaded 15. I should have 5 left. Again this bit works and stops the user after he has selected 5 images.

What i cant get working is if the user already uploaded 20. His user quota now is 0. So i set the value for MaxFileCount =0. But this doesnt stop the user from selecting images. In fact he can select as many as he wants. i tried '0' and '-1' but they seem to allow the user to continue selecting images. Is there a way to stop this from happening?

thanks Sonny

Zero value is the default value for this parameter which means no restriction. I think you should replace Image Uploader insertion code with some another content if the user is not allowed to upload any more photos.