function sendRequest() {
				document.getElementById('Loading').style.display='block';
				new Ajax.Request("diagnosis.php", 
					{ 
					method: 'post', 
					postBody: 'query='+ $F('query'),
					onComplete: showResponse 
					});
				}

			function showResponse(req){
				document.getElementById('Loading').style.display='none';
				$('results').innerHTML= req.responseText;
			}