field errors from initBinder

Hi,
I am running into this when I use javascript showHide in the jsp with a FormController.

Basically, if I have a field x and a field y,
if field y is hidden under some conditions, if there happens to be input entered for field y before it is hidden, initBinder still detects a binding error. When field y is hidden, the gui user can not see the error but he can not proceed either.

I tried to clear the field errors in the onBindAndValidate but the errors list is an unmodifiable collection.

Has anyone run into this before? Please let me know if the question is unclear. I will try to clarify.
Thanks,

Maybe not a perfect solution but since you are using a javascript to show/hide you could set the field to something valid there too.