jquery getjson ajax problem

[vikas sharmaa]

i have used jquery ajax functions to implement chat application. now, i want to update my chat window every second. so, i have written below javascript code:

	function updateChat() {
		
		$.getJSON("chat/update.htm", { chatId: $('#chatId').val()}, {cache: false}, function(msg) {  

			$("#public_messages").html(msg.public_messages);
		});
	}
	setInterval(updateChat, 1000);

even though updateChat is getting called every second.. but server call to chat/update.htm is getting called only first time. please tell me, where i am going wrong?

[vikas sharmaa]

it was cache issue. i resolved it by appending epoch value in the request parameter as shown below:

	function updateChat() {
		
			var d = new Date();
			var url = "chat/update.htm?epoch=" + d.getMilliseconds();

			$.getJSON(url, { chatId: $('#chatId').val()}, function(msg) {  
		
				$("#public_messages").html(msg.public_messages);
			});
		}
	}
	setInterval(updateChat, 1000);

Thank you.