function sendRequest(requestType, requestData, source, completeFunc) {
	sendRequestAdv(requestType, requestData, source, completeFunc, null, null, false);
}

function sendRequestAdv(requestType, requestData, source, completeFunc, messageFunc, messageDelay, binaryInput) {
	var divId = createDivRelative("loadingDiv", source);
	$('#' + divId).html("<img src='graphics/loading.gif' /> Wait...");
	$('#' + divId).animate(
		{
    		opacity: 1,
    		left: "+=30"
    	},
    	300,
    	function() {
			$.ajax(
				{
					url: "request/" + requestType + ".php",
					type: "POST",
					data: requestData,
					contentType: (binaryInput ? false : "application/x-www-form-urlencoded; charset=UTF-8"),
					processData: !binaryInput,
					dataType: 'text',  // type of response
					success: function(response) {
						updateAfterRequest(divId, response, completeFunc, 200, messageFunc, messageDelay);
		    		},
		    		error: function(xhr, textStatus, errorThrown) {
						updateAfterRequest(divId, xhr.responseText, completeFunc, xhr.status, messageFunc, messageDelay);
		    		}
		    	}
		    );
		}
	);
}

function updateAfterRequest(divId, response, completeFunc, status, messageFunc, messageDelay) {
	if(messageFunc == null) {
		messageFunc = function(success, status, response) {
			return response;
		};
	}
	var message = messageFunc((status == 200), status, response);
	$('#' + divId).html("<img src='graphics/status.php?status=" + status + "' title='Status " + status + "' /> " + message);

	setTimeout(
		function() {
			$('#' + divId).animate(
				{
		    		opacity: 0,
		    		left: "+=50"
		    	},
		    	500,
		    	function() {
					removeDiv(divId);
				}
			);
			if(completeFunc != null) {
				completeFunc((status == 200), status, response);
			}
		},
		(messageDelay != null ? messageDelay : (status == 200 ? 1000 : 6000))
	);
}