$(document).ready(function() {
	
	$('#HowDid').change (
		function() {
			var message_index 
			
			message_index = $("#HowDid").val(); 
		
			if (message_index == "DMB Post Card")  {
				$('.postCard').show();
			} else {$('.postCard').hide();}
		}
	);
	
var message_index 
			
			message_index = $("#HowDid").val(); 
		
			if (message_index == "DMB Post Card")  {
				$('.postCard').show();
			} else {$('.postCard').hide();}
	
});