jquery validator and asp.net updatepanel

let's say that I have a formview inside of an UpdatePanel, and an Insert or Update button to trigger the formview insert/update method.

I added the jquery validator plugin and it works fine, like it will popup the error msg if i input the wrong email address format
but it doesn't work with the formview button.

As long as I click the insert or update button, the updatepanel async postback will occur regardless the jquery validator, how do i bind the button with the jquery validator to trigger the validation?