//****************************************
// Load Required YUI Scripts
//****************************************
var onLoadFunction = function() {
	YAHOO.util.Get.script("scripts/Cookie.js", {});
	if (YAHOO) {
		YAHOO.util.Get.script("yui/2.8.0r4/build/yahoo-dom-event/yahoo-dom-event.js", {
			onSuccess: function() {
				YAHOO.util.Get.script("yui/2.8.0r4/build/connection/connection-min.js", {
					onSuccess: function() {
						YAHOO.util.Get.script("yui/2.8.0r4/build/animation/animation-min.js", {});
						YAHOO.util.Get.script("yui/2.8.0r4/build/json/json-min.js", {

							onSuccess: function() { if (Quoter) { Quoter.Init(); } }
						});
					}
				});
			}
		});
	}
};

if(typeof(window.attachEvent) !== "undefined") {
	window.attachEvent('onload', onLoadFunction);
}
else {
	window.addEventListener("load", onLoadFunction, false);
}


//****************************************
// Quoter class
//****************************************
var Quoter = function() {

    var _control = null;
    var _running = false;
    var _quotes = null;
    var _currentQuote = -1;

    var _quoterId = "quotator";
    var _timeToViewQuote = 8000; // ms
    var _timeBeteenQuotes = 1500; // ms
    var _timeToFade = 1; // secs

	//
	// Loads the next quote into the quoter elements
	//
	function loadQuote() {
		if(_control && _quotes && _quotes && _quotes.length > 0) {
			var ps = _control.getElementsByTagName("p");
			if(ps.length >= 2) {
				_currentQuote = (_currentQuote+1 >= _quotes.length) ? 0 :_currentQuote+1;
//				window.currentQuote = _currentQuote;
				Cookie.CreateCookie("Quoter.CurrentQuote", _currentQuote, 31);
				
				if(document.all) {
					ps[0].innerText = _quotes[_currentQuote].quote;
					ps[1].innerText = "- " + _quotes[_currentQuote].name; }
				else {
					ps[0].textContent = _quotes[_currentQuote].quote;
					ps[1].textContent = "- " + _quotes[_currentQuote].name;
				}
				
			}
		}
	}

	//
	// Displays the next quote
	//
    function showNext() {

        if (_control) {
            var fadeOutAnim = new YAHOO.util.Anim(_control, { opacity: { to: 0} }, _timeToFade);
            fadeOutAnim.animate();

            if (_running) {
                window.setTimeout(function() {
					loadQuote();
                    var fadeInAnim = new YAHOO.util.Anim(_control, { opacity: { to: 1} }, _timeToFade);
                    fadeInAnim.animate();
                    window.setTimeout(showNext, _timeToViewQuote);
                }, _timeBeteenQuotes);
            }
        }
    }

	//
	// Starts the quotes cycling
	//
    function start() {
        if (_control && !_running) {
			loadQuote();
            var fadeInAnim = new YAHOO.util.Anim(_control, { opacity: { to: 1} }, _timeToFade);
            fadeInAnim.animate();
            _running = true;
            window.setTimeout(showNext, _timeToViewQuote);
        }

    }

	//
	// Stops the quotes from cycling
	//
    function stop() {
        _running = false;
    }

	// Initializes the Quoter class
    function init(args) {

        var oArgs = (args) ? args : {};

        if (oArgs.quoterId) {
            _quoterId = oArgs.quoterId;
        }

        if (oArgs.timeToViewQuote) {
            var time = parseFloat(oArgs.timeToViewQuote);
            if (!isNaN(time)) {
                _timeToViewQuote = time * 1000;
            }
        }

        if (oArgs.timeBeteenQuotes) {
            var time = parseFloat(oArgs.timeBeteenQuotes);
            if (!isNaN(time)) {
                _timeBeteenQuotes = time * 1000;
            }
        }

        if (oArgs.timeToFade) {
            var time = parseFloat(oArgs.timeToFade);
            if (!isNaN(time)) {
                _timeToFade = time;
            }
        }
		
		if(Cookie) {
			var value = Cookie.ReadCookie("Quoter.CurrentQuote");
			if(value) {
				var curQuote = parseInt(value, 10);
				if(!isNaN(curQuote)) {
					_currentQuote = curQuote;
				}
			}
		}

        _control = document.getElementById(_quoterId);

		/*
		if(window && window.currentQuote) {
			var parsedValue = parseInt(window.currentQuote, 10);
			if(!isNaN(parsedValue)) {
				_currentQuote = parsedValue;
			}
		}
		*/
		
        var callbacks = {

            success: function(o) {

                _quotes = null;
                try {
					
                    _quotes = YAHOO.lang.JSON.parse(o.responseText);
					if(_quotes.quotes) {
						_quotes = _quotes.quotes;
					}
					else {
						_quotes = null;
					}
					
					if (_control) {
						start();
                    }
                }
                catch (x) {
                    return;
                }
            },

            failure: function(o) {
				alert(o);
                return;
            },

            timeout: 3000
        }
        YAHOO.util.Connect.asyncRequest('GET', "quotes.txt", callbacks);
    }

	//
	// PUBLIC METHODS
	//
    return {
        Init: init,
        Start: start,
        Stop: stop
    };

} ();