[jQuery] BlockUI and unBlockUI after validation routine

[jQuery] BlockUI and unBlockUI after validation routine

Hi all.
I'm trying to use BlockUI to show a message while a validation routine occurs in my form.
Looks like this:
        $(document).ready(function(){
/*
when user fires submit button blockUI shows a wait message - WORKS FINE
*/      
        $(function() {
            $('#SaveInfoButton').click(function() {
                $.blockUI();
            });
        });
/*
all long long long time form validation routine
*/
$.unblockUI; // DOESN'T UNBLOCK - WHY???
blockUI works fine showing a message but unblockUI doesn't. What's wrong? Is it possible to do?
Cheers