$(document).ready(function(){

	if ($("div.demoflow").size()){
		var inst = new $.ui.carousel($("div.demoflow")[0], { height: 134, width: 172 });
		$("div.demoflow-button-left, div.demoflow-button-right").bind("mouseover", function(){
			var right = this.className.indexOf("right") == -1;
			if(inst.autoRotator) window.clearInterval(inst.autoRotator);
			inst.timer = window.setInterval(function() { inst.rotate(right ? "right" : null); }, 13);
		})
		.bind("mouseout", function(){
			window.clearInterval(inst.timer);
		});
		
		$('.demoflow div.shadow').hover(function(){
			this._lastopacity = $(this).css('opacity');
			$(this).stop().animate({opacity: 0 }, 300);
		}, function(){
			$(this).stop().animate({opacity: this._lastopacity }, 300);
		});
		
		window.setTimeout(function(){
			inst.element.animate({ opacity: 1 },2000); inst.rotate(0,2000,0.45);
			window.setTimeout(function(){
				inst.autoRotator = window.setInterval(function() { inst.rotate(0,2000,0.45); },5000);
			},3000);
		},0);

	}

	$('a').click(function(){
		this.blur();
	});
	
	var hover = hoverEffects();
	hover.init();
});


	
$.ui.carousel = function(element, options) {
	this.element = $(element);
	this.options = $.extend({}, options);
	var self = this;
	
	$.extend(this, {
		start: Math.PI/2,
		step: 2*Math.PI/$("> *", this.element).length,
		radiusX: 200,
		radiusY: -15,
		paddingX: this.element.outerWidth() / 2,
		paddingY: this.element.outerHeight() / 2
	});
	
	$("> *", this.element).css({ position: "absolute", top: 0, left: 0, zIndex: 1 });
	
	
	this.rotate();
	this.rotate("right");
	
	this.element.parent().bind("mousewheel", function(e,delta) {
		if(self.autoRotator) window.clearInterval(self.autoRotator);
		self.rotate(delta < 0 ? "right" : "left");
		return false;
	});
};
	

$.ui.carousel.prototype.rotate = function(d,ani,speed) {
	this.start = this.start + (d == "right" ? -(speed || 0.03) : (speed || 0.03));
	var o = this.options;
	var self = this;
	
	
	setTimeout(function(){
		$("> *", self.element).each(function(i) {
			var angle = self.start + i * self.step;
			var x = self.radiusX * Math.cos(angle);
			var y = self.radiusY * Math.sin(angle);
			var _self = this;
			
			var width = o.width * ((self.radiusY+y) / (2 * self.radiusY));
			width = (width * width * width) / (o.width * o.width);
			var height = parseInt(width * o.height / o.width);

			$(_self).css({ visibility: height < 30 ? "hidden" : "visible" });
			if(height < 30 && !ani) return;

			
			if(ani){
				$(_self).animate({
					top: Math.round(self.paddingY + y - height/2) + "px",
					left: Math.round(self.paddingX + x - width/2) + "px",
					width: Math.round(width) + "px",
					height: Math.round(height) + "px"
				},{ duration: ani, easing: "easeOutQuad" });
				$(_self).css({ zIndex: Math.round(parseInt(100 * (self.radiusY+y) / (2 * self.radiusY))) });
			}else{
				$(_self).css({
					top: self.paddingY + y - height/2 + "px",
					left: self.paddingX + x - width/2 + "px",
					width: width + "px",
					height: height + "px",
					zIndex: parseInt(100 * (self.radiusY+y) / (2 * self.radiusY))
				});
				
			}

			$("div.shadow",_self).css({ opacity: 1 - (width / o.width) });
		});
	}, 0);
}


var hoverEffects = function() {
	var me = this;
	var args = arguments;
	var self = {
		c: {
			navItems: 'div.demoflow-button-left, div.demoflow-button-right',
			navSpeed: ($.browser.safari ? 600: 350),
			snOpeningSpeed: ($.browser.safari ? 400: 250),
			snOpeningTimeout: 150,
			snClosingSpeed: function() {
				if (self.subnavHovered()) return 123450;
				return 150
			},
			snClosingTimeout: 700
		},
		init: function() {
			this.initHoverFades()
		},
		subnavHovered: function() {
			var hovered = false;
			$(self.c.navItems).each(function() {
				if (this.hovered) hovered = true
			});
			return hovered
		},
		initHoverFades: function() {
			$(self.c.navItems).hover(function() {
				self.fadeNavIn.apply(this)
			},
			function() {
				var el = this;
				setTimeout(function() {
					if (!el.open) self.fadeNavOut.apply(el)
				},
				10)
			})
		},
		fadeNavIn: function() {
			$('.demoflow-button-left', this).stop().animate({
				'opacity': 1
			},
			self.c.navSpeed)
		},
		fadeNavOut: function() {
			$('.demoflow-button-left', this).stop().animate({
				'opacity': 0
			},
			self.c.navSpeed)
		},
		initSubmenus: function(){
			$(this.c.navItems).hover(function(){
				$(self.c.navItems).not(this).each(function(){
					self.fadeNavOut.apply(this);
				});
				this.hovered = true;
				var el = this;
				self.fadeNavIn.apply(el);
			},
			function(){
				this.hovered = false;
				var el = this;
				if (!el.open) self.fadeNavOut.apply(el);
			})
		}
	};
	return self;
};