(function($){
	
	defaults = {
		speed:500,
		delay:5000,
		linked:true,
		selection:"li"
	};
		
	callbacks = {
		_in:false,
		out:false,
		init:false
	};
	
	animations = {
		_in:"fadeIn",
		out:"fadeOut"
	};
	
	ticker = {
		init:function(collection, args) {
			settings = $.extend(defaults, {});
			settings.animations = animations;
			settings.callbacks = callbacks;
			
			if(args) {
				settings = $.extend(settings, args);
				settings.animations = $.extend(settings.animations, args.animations);
				settings.callbacks = $.extend(settings.callbacks, args.callbacks);
			}
			
			return collection.each(function(n, element){
				element.ticker = {
					looping:false,
					current:false,
					settings:settings,
					animating:false
				};
				
				$(element.ticker.settings.selection, element).each(function(n, item){
					if(!element.ticker.current) {
						element.ticker.current = item;
					} else {
						$(item).hide();
					}
				});
				
				ticker._callback(element, "init");
			});
		},
		
		_callback:function(element, name) {
			if(element.ticker.settings.callbacks[name]) {
				element.ticker.settings.callbacks[name](element);
			}
		},
		
		_change:function(element, next) {
			if(element.ticker.current != next && !element.ticker.animating) {
				element.ticker.animating = true;
				
				if(element.ticker.current) {
					eval("jQuery(element.ticker.current)."+element.ticker.settings.animations.out+"(element.ticker.settings.speed);");
					ticker._callback(element, "out");
				}
				
				element.ticker.current = next;
				
				setTimeout(function(){
						eval("jQuery(element.ticker.current)."+element.ticker.settings.animations._in+"(element.ticker.settings.speed);");
						ticker._callback(element, "_in");
						setTimeout(function(){element.ticker.animating = false;}, element.ticker.settings.speed);
					}, element.ticker.settings.speed+10);
			}
		},
		
		_loop:function(element, now) {
			return function(){
				if(element.ticker.looping) {
					$(element).ticker("next");
				}
			};
		},
		
		go:function(collection, to) {
			return collection.each(function(n, element){
				if(typeof to == "number") {
					$(element.ticker.settings.selection, element).each(function(n, item){
						if(n == to) {
							ticker._change(element, item);
						}
					});
				} else if (typeof to == "object") {
					ticker._change(element, to);
				} else if (typeof to == "string") {
					$(to, element).each(function(n, item){
						ticker._change(element, item);
					});
				}
			});
		},
		
		next:function(collection) {
			return collection.each(function(n, element){
				next = false;
				first = false;
				step = 0;
				
				$(element.ticker.settings.selection, element).each(function(n, item){
					if(n === 0) {
						first = item;
					}
					if(item == element.ticker.current && step === 0) {
						step++;
					} else if(step == 1) {
						next = item;
						step++;
					}
				});
				
				if(!next && element.ticker.settings.linked) {
					next = first;
				}
				
				if(next) {
					ticker._change(element, next);
				}
			});
		},
		
		prev:function(collection) {
			return collection.each(function(n, element){
				prev = false;
				found = false;
				
				$(element.ticker.settings.selection, element).each(function(n, item){
					if(item == element.ticker.current && n > 0) {
						found = true;
					}
					if(!found) {
						prev = item;
					}
				});
				
				if(found || element.ticker.settings.linked) {
					ticker._change(element, prev);
				}
			});
		},
		
		loop:function(collection) {
			return collection.each(function(n, element){
				ticker.start(collection);
				setInterval(ticker._loop(element), element.ticker.settings.delay);
			});
		},
		
		stop:function(collection) {
			return collection.each(function(n, element){
				element.ticker.looping = false;
			});
		},
		
		start:function(collection) {
			return collection.each(function(n, element){
				element.ticker.looping = true;
			});
		}
	};
	
	$.fn.ticker = function(call, args) {
		return ticker[call](this, args);
	};
	
})(jQuery);