仅在模糊时ASP.NET远程验证？

I'm using the remote validation in MVC 3, but it seems to fire any time that I type something, if it's the second time that field's been active. The problem is that I have an autocomplete box, so they might click on a result to populate the field, which MVC views as "leaving" it.I'm using the remote validation in MVC 3, but i