var $emailBoxes = $('#answer559779X556X128541_a,#answer559779X556X128542_a');
var emailPat = /^(\w[-._+\w]*\w@\w[-._\w]*\w\.\w{2,3})$/
$('#movenextbtn').on('click',function(){
  var errorState = false;
  $emailBoxes.each(function(){
  var tempEmailInput = $.trim($(this).val());
    if(tempEmailInput != '' && emailPat.test(tempEmailInput) == false){ //Input is not empty and Do not pass email validation test
      $(this).css('background-color','red');
      $('span.questionhelp:first').text('Please enter valid email id').css('color','red');
      errorState = true;
    }
  });
  if(errorState){
  return false;
  }
});