Custom jQuery working for validation error but not confirmation

Hi Guys.

I am trying to add a couple of classes to the '.gform_confirmation_message_X' elements and am having no luck. However, the following code is successful in adding those classes to the '.validation_message element'.

The Code:

function gformsError() {

		jQuery(document).bind('gform_post_render', function(){

   			$('#input_2_1').attr('placeholder','Name...');
	    	$('#input_2_3').attr('placeholder','Email...');
	    	$('#input_2_5').attr('placeholder','Phone...');
	    	$('#input_2_2').attr('placeholder','Subject...');
	    	$('#input_2_6').attr('placeholder','Your Company\'s Goals...');

	    	$('#input_4_1').attr('placeholder','Name...');
	    	$('#input_4_3').attr('placeholder','Email...');
	    	$('#input_4_5').attr('placeholder','Phone...');
	    	$('#input_4_2').attr('placeholder','Subject...');
	    	$('#input_4_6').attr('placeholder','Your Company\'s Goals...');

	    	$('[placeholder]').focus(function() {
			  var input = $(this);
			  if (input.val() == input.attr('placeholder')) {
			    input.val('');
			    input.removeClass('placeholder');
			  }
			}).blur(function() {
			  var input = $(this);
			  if (input.val() == '' || input.val() == input.attr('placeholder')) {
			    input.addClass('placeholder');
			    input.val(input.attr('placeholder'));
			  }
			}).blur().parents('form').submit(function() {
			  $(this).find('[placeholder]').each(function() {
			    var input = $(this);
			    if (input.val() == input.attr('placeholder')) {
			      input.val('');
			    }
			  })
			});

			$('.gfield_description.validation_message').addClass('animated fadeIn');
			$('.gform_confirmation_message_3').addClass('animated fadeIn');
			$('.gform_confirmation_message_2').addClass('animated fadeIn');

		});
	}

A demo: http://dppad.com/dev/3/