gistfile1.txt

$(document).ready(function() 
{
	function displayAjaxMessage(message)
	{
		$("#newsletter-form-message").html(message);
		$("#newsletter-form-message").show();
	}
	
	$("#newsletter-form").submit(function(event) 
	{
		// stop the contact form from submitting normally
		event.preventDefault(); 
		
		// hide any left over message from a previous submit
		$("#newsletter-form-message").hide();
	
		$.ajax(
		{
			url: "/",
			type: "post",
			dataType: "html",			
			data: $(this).serialize(),
			
			// there was an error
			error: function(jqXHR, textStatus, errorThrown)
			{
				displayAjaxMessage("Sorry, there was an error joining the list, please try again.");
			},
	
			success: function(html, textStatus, jqXHR) 
			{
				// displayAjaxMessage(html);
				if (html.match(/<title>Error<\/title>/)) 
				{
					var error = $(html).find('ul li:first').text();	
					if (error == "Your email address is already in the mailing list")
					{
						displayAjaxMessage("Your email address is already on the mailing list.");
					}
					else if (error == "Invalid email address")					
					{
						displayAjaxMessage("Enter a valid email address.");						
					}
					else if (error == "You must submit an email address")					
					{
						displayAjaxMessage("You must submit an email address.");						
					}
				}
				else
				{
					$("#newsletter-form").hide();
					displayAjaxMessage("Thanks! You should receive a confirmation email!");
				}
			}

		});
	});
});