$(document).ready(function() {
  $("#contactForm").validate({
    rules: {
      realname: {
      required: true
      }, 
      street: {
      required: true
      }, 
      suburb: {
      required: true
      }, 
      postcode: {
      required: true,
      digits: true
      }, 
      email: {
      required: true,
      email: true
      },
      telephone: {
        required: true
      }
    },
    messages: {
      comment: "Please enter a comment.",
      realname: "Please enter your name",
      street: "Please enter your street address",
      suburb: "Please enter your suburb",
      postcode: "Please enter your postcode",
      email: "Please enter a valid email address",
      telephone: "Please enter your contact telephone number"
    }
  });
});