jQuery.fn.flide = function(options) {
	
	var defaults = {
		speed		 				: 400,
		ease_type				: 'easeInOutExpo',
		width		 				: 500,
		height	 				: 300,
		active	 				: 'active',
		classes					: '',
		clickable				: true,
		auto_play				: false,
		slide_interval	: 5000,
		arrows					: true
	};
	
	// From the jquery.easing plugin
	// http://gsgd.co.uk/sandbox/jquery/easing/jquery.easing.1.3.js
	$.fn.extend( $.easing, {
		easeInOutExpo: function (x, t, b, c, d) {
			if (t===0) return b;
			if (t===d) return b+c;
			if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
			return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
		}
	});
	
	return this.each(function(){
		
		var s = $.extend({}, defaults, options);
		
		var list = $(this),
				slides = $('> li', this).length,
				flide_w = s.width * slides,
				slide_stop = false,
				current_slide = 0;
		
		list.wrap('<div class="flide_wrapper ' + ( s.classes ) + '" style="width: ' + s.width + 'px; height: ' + s.height + 'px;">');
		list.css('width', flide_w);
		$('.flide_wrapper').append('<span class="ir prev">Previous slide</span><span class="ir next">Next slide</span><ul class="flide_nav" />');
		list.children('li').each(function(i) {
			var nav_class = i + 1 === slides ? ' class="last"' : '';
			list.siblings('.flide_nav').append('<li' + nav_class + '><a href="#">'+ ( i + 1 ) + '</a></li>');
		}).css({
			width		: s.width,
			height	: s.height
		});
		
		var nav_list = $(this).siblings('.flide_nav'),
				nav_items = nav_list.children('li'),
				prev = $(this).siblings('.prev'),
				next = $(this).siblings('.next'),
				prev_next = prev.add(next);
		
		if ( nav_items.length < 2 ) {
			nav_list.add(prev_next).hide();
		}
		
		if ( ! s.arrows ) {
			prev_next.hide();
		}
		
		nav_items.eq(0).addClass(s.active);
		
		if ( s.clickable ) {
			
			list.click(function(e) {
				clear_auto_slide();
				e.preventDefault();
				current_slide++;
				slide();
			});
			
		}
		
		$('.flide_wrapper .prev, .flide_wrapper .next').live('click', function(e) {
			e.preventDefault();
			if ( $(this).hasClass('next') ) {
				current_slide++;
			} else {
				current_slide--;
			}
			slide();
			clear_auto_slide();
		});
		
		function slide() {
			
			current_slide = current_slide === slides ? 0 : current_slide;
			current_slide = current_slide === -1 ? slides-1 : current_slide;
			
			nav_items.removeClass(s.active).eq(current_slide).addClass(s.active);
			list.animate({
				left: - ( s.width * current_slide )
			}, {
				duration	: s.speed,
				queue			: false,
				easing		: s.ease_type
			});
		}
		
		$('.flide_nav li', this.parentNode).live('click', function(e) {
			e.preventDefault();
			current_slide = $(this).index();
			slide();
			clear_auto_slide();
		});
		
		function check_key(e) {
			switch (e.keyCode) {
				case 37: // Left arrow key
					current_slide--;
				break;
				case 39: // Right arrow key
					current_slide++;
				break; 
			}
			
			slide();
			if ( auto_slide ) {
				clear_auto_slide();
			}
			
		}
		
		function clear_auto_slide() {
			clearInterval(auto_slide);
			auto_slide = false;
		}
		
		$(document).keydown(check_key);
		
		if( s.auto_play ){
		
			var auto_slide = window.setInterval(function(){
				current_slide++;
				slide();
			}, s.slide_interval);
			
		}
		
	});
};