Enable/Disable asp:validators using jquery

I am working with a wizard, where the user can sign up. There is a asp:RadioButtonList with two options, and some of the input fields in the wizard changes when the radiobutton changes. On each field there is some asp:Validators (asp:RequiredFieldValidator for example). The problem is, that when the user submits the page, the validator for the hidden textbox is still popping up.