(function($) {

	$.fn.jFlow = function(options) {
		var opts = $.extend({}, $.fn.jFlow.defaults, options);
		var cur = 0;
		var maxi = $(".nav").length;
		$(this).find(".nav").each(function(i){
			$(this).click(function(){
				$(".nav").removeClass("jFlowSelected");
				$(this).addClass("jFlowSelected");
				var dur = Math.abs(cur-i+1);
				$(opts.slides).animate({
					marginLeft: "-" + (i * $(opts.slides).find(":first-child").width() + "px")
				}, opts.duration*(dur));
				cur = i;
			});
		});	
		
		$(opts.slides).before('<div id="jFlowSlide"></div>').appendTo("#jFlowSlide");
		
		$(opts.slides).find("div").each(function(){
			$(this).before('<div class="jFlowSlideContainer"></div>').appendTo($(this).prev());
		});
		
		//initialize the controller
		$(".nav").eq(cur).addClass("jFlowSelected");
		
		var resize = function (x){
			$("#jFlowSlide").css({
				position:"relative",
				width: opts.width,
				height: opts.height,
				overflow: "hidden"
			});
		
			$(opts.slides).css({
				position:"relative",
				width: $("#jFlowSlide").width()*$(".nav").length+"px",
				height: $("#jFlowSlide").height()+"px",
				overflow: "hidden"
			});
		
			$(opts.slides).children().css({
				position:"relative",
				width: $("#jFlowSlide").width()+"px",
				height: $("#jFlowSlide").height()+"px",
				"float":"left"
			});
			
			$(opts.slides).css({
				marginLeft: "-" + (cur * $(opts.slides).find(":first-child").width() + "px")
			});
		}
		
		resize();
		
		$(window).resize(function(){
			resize();						  
		});
		
		$(".jFlowPrev").click(function(){
			if (cur > 0)
				cur--;
			else
				cur = maxi -1;
			
			$(".nav").removeClass("jFlowSelected");
			$(opts.slides).animate({
				marginLeft: "-" + (cur * $(opts.slides).find(":first-child").width() + "px")
			}, opts.duration);
			$(".nav").eq(cur).addClass("jFlowSelected");
		});
		
		$(".jFlowNext").click(function(){
			if (cur < maxi - 1)
				cur++;
			else
				cur = 0;
				
			$(".nav").removeClass("jFlowSelected");
			$(opts.slides).animate({
				marginLeft: "-" + (cur * $(opts.slides).find(":first-child").width() + "px")
			}, opts.duration);
			$(".nav").eq(cur).addClass("jFlowSelected");
		});
	};
	
	$.fn.jFlow.defaults = {
		easing: "swing",
		duration: 400,
		width: "980px"
	};
	
})(jQuery);