How to build "Yes and No" Buttons in Visualforce Email template?

How to build "Yes and No" Buttons in Email template?Here My requrement was iam sending email template through Url.It was working fine.But now i nedd to change in that one.That is i want to add "yes and  No " buttons in that email template.when the reciepient click on "yes" button then the Case should be automatically close & status feild should be updated? Can any one help me plz?