$(document).ready(function(){

contactForm = $("body#www-weloveyourbrand-co-uk.page.contact-us #primary form");
if (contactForm.length){
      contactForm.submit(function(){ 
          if ($.trim($("#primary input#formfield-first_name").val()) == '' ){
              alert('Please enter your First Name');
              return false;
          }
          if ($.trim($("#primary input#formfield-surname").val()) == '' ){
              alert('Please enter your Surname');
              return false;
          }
          if ($.trim($("#primary input#formfield-email").val()) == '' ){
              alert('Please enter your Email Address');
              return false;
          }
      });
}


});