Prototype: AJAX Get

<script>	
document.observe('dom:loaded', function() {

	new Ajax.Request('ajax.php', {
	
		method: 'get',
		onCreate: function() {},
		
		// Main Parameters ...
		onSuccess: function(transport) {
			// Handle the JSON returned from PHP
			data = transport.responseText.evalJSON();
			$('output').insert(data.message + '<br />');
		},
		onComplete: function(transport) {
			// Handle the JSON returned from PHP
			data = transport.responseText.evalJSON();
			$('output').insert(data.complete);
		}			
	});

});
</script>
	
<div id="output"></div>

<?php
$array = array(
	'message' => 'Looks Good',
	'complete' => 'Well, we\'re done here!'
);

echo json_encode($array);