var Slider = function(args)
{
	this.initialize(args);
}

Slider.prototype = {
	initialize: function(args)
	{
		this.setSliderWidth(args);
	
		this.slideAutoRotate;
		if(args.naviButtons.show) {
			this.addNaviButtons(args, this.slideAutoRotate);
		}
		if(args.rotate.auto)
		{
			this.autoRotate(args, this.slideAutoRotate);
		}
	},
	
	slidePrev: function(args)
	{
		if(!$(args.selector.wrap + ' ' + args.selector.slide).is(':animated'))
		{
			var leftLimit = (this.getNumberOfItems(args) - 1) * this.getItemWidth(args);
			var leftPos = Math.abs($(args.selector.wrap + ' ' + args.selector.slide).css('left').replace(/px/g, ''));
			if(leftPos <= 0)
			{
				if(args.wrapAround)
				{	
					$(args.selector.wrap + ' ' + args.selector.slide).animate(
					{
						left: -leftLimit + 'px'
					},
					{
						queue: true,
						duration: args.wrapAroundSpeed
					});
				}
			}
			else
			{
				var toRight = Math.abs(leftPos - this.getItemWidth(args));
				$(args.selector.wrap + ' ' + args.selector.slide).animate(
				{
					left: -toRight + 'px'
				},
				{
					queue: true,
					duration: args.speed
				});
			}
		}
	},
	
	slideNext: function(args)
	{
		if(!$(args.selector.wrap + ' ' + args.selector.slide).is(':animated'))
		{
			var leftLimit = (this.getNumberOfItems(args) - 1) * this.getItemWidth(args);
			var leftPos = Math.abs($(args.selector.wrap + ' ' + args.selector.slide).css('left').replace(/px/g, ''));
			if(leftPos >= leftLimit)
			{
				if(args.wrapAround)
				{
					$(args.selector.wrap + ' ' + args.selector.slide).animate(
					{
						left: '0px'
					},
					{
						queue: false,
						duration: args.wrapAroundSpeed
					});
				}
			}
			else
			{
				var toLeft = -leftPos - this.getItemWidth(args);
				$(args.selector.wrap + ' ' + args.selector.slide).animate(
				{
					left: toLeft + 'px'
				},
				{
					queue: false,
					duration: args.speed
				});
			}
		}
	},
	
	autoRotate: function(args)
	{
		var self = this;
		$(args.selector.wrap + ' ' + args.selector.slide).everyTime(args.rotate.interval, 'slideAutoRotate', function(){ self.slideNext(args); });
		if(args.rotate.pauseOnMouseOver)
		{
			$(args.selector.wrap + ' ' + args.selector.slide).mouseleave(function()
			{
				$(this).everyTime(args.rotate.interval, 'slideAutoRotate', function(){ self.slideNext(args); });
			});
			$(args.selector.wrap + ' ' + args.selector.slide).mouseenter(function()
			{
				$(this).stopTime('slideAutoRotate');
			});
		}
	},
	
	stopAutoRotate: function(args)
	{
		if(args.rotate.auto && args.rotate.stopAutoOnUserClick)
		{
			$(args.selector.wrap + ' ' + args.selector.slide).stopTime('slideAutoRotate');
			$(args.selector.wrap + ' ' + args.selector.slide).unbind('mouseleave');
		}
	},
	
	setSliderWidth: function(args)
	{
		var self = this;
		this.totalWidth = this.getNumberOfItems(args) * this.getItemWidth(args);
		$(args.selector.wrap + ' ' + args.selector.slide).css('width', self.totalWidth + 'px')
	},
	
	getNumberOfItems: function(args)
	{
		return $(args.selector.wrap +  ' ' + args.selector.item).size();
	},
	
	getItemWidth: function(args)
	{
		return $(args.selector.wrap + ' ' + args.selector.item).eq(0).width();
	},
	
	addNaviButtons: function(args)
	{
		var self = this;
		this.args = args;
		var naviButtons = '<a href="#" onclick="return false;" class="prev">' + args.naviButtons.prevText + '</a><a href="#" onclick="return false;" class="next">' + args.naviButtons.nextText + '</a>';
		$(args.selector.wrap + ' ' + args.selector.slide).after(naviButtons);
		
		$(args.selector.wrap + ' .prev').click(function()
		{
			self.slidePrev(self.args);
			self.stopAutoRotate(self.args);
		});
		$(args.selector.wrap + ' .next').click(function()
		{
			self.slideNext(self.args);
			self.stopAutoRotate(self.args);
		});
		
		if($(args.selector.wrap + ' .prev').css('opacity') < 1.0)
		{
			var originalOpacity = $(args.selector.wrap + ' .prev').css('opacity');
			$(args.selector.wrap).mouseenter(function()
			{
				$(args.selector.wrap + ' .prev, ' + args.selector.wrap + ' .next').animate(
				{ 
					opacity: 1.0,
				},
				{
					queue: false,
					duration: 200
				});
			});
			$(args.selector.wrap).mouseleave(function()
			{
				$(args.selector.wrap + ' .prev, ' + args.selector.wrap + ' .next').animate(
				{ 
					opacity: originalOpacity,
				},
				{
					queue: false,
					duration: 400
				});
			});
		}
	}
};