[jQuery] Negate a validation checkbox

[jQuery] Negate a validation checkbox


Hi all,
I have checkbox that if the user check it, the near tetxbox is no more
required.
In the "normal" case, I have:
myTextbox: {
required: "#myCheckbox:checked"
},
How can I negate this?
Simply speaking, get the tetxbox no required if the checkbox is
checked.
Thanks in advance.
Luigi