/* Copyright (c) 2008 Kean Loong Tan http://www.gimiti.com/kltan
 * Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * jFlow
 * Version: 1.1 (May 22, 2008)
 * Requires: jQuery 1.2+
 */

//modified by LandRover 30th May 08

(function ($) {

	$.fn.jFlow = function (options) {
		var opts = $.extend({}, $.fn.jFlow.defaults, options);
		var cur = 0;
		var timer;
		var selected_class = "jFlowSelected";
		var maxi = $(".jFlowControl").length;
		$(this).find(".jFlowControl").each(function (i) {
			$(this).click(function () {
				dotimer();

				$(".jFlowControl").removeClass(selected_class);
				$(this).addClass(selected_class);
				//alert(cur);
				//alert(i);
				var dur = Math.abs(cur - i);
				$(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
		$(".jFlowControl").eq(cur).addClass(selected_class);

		var resize = function (x) {
			$("#jFlowSlide").css({
				position: "relative",
				width: opts.width,
				height: opts.height,
				overflow: "hidden"
			});

			$(opts.slides).css({
				position: "relative",
				width: $("#jFlowSlide").width() * $(".jFlowControl").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 () {
			dotimer();
			doprev();
		});

		var doprev = function (x) {
			if (cur > 0)
				cur--;
			else
				cur = maxi - 1;

			$(".jFlowControl").removeClass(selected_class);
			$(opts.slides).animate({
				marginLeft: "-" + (cur * $(opts.slides).find(":first-child").width() + "px")
			}, opts.duration);
			$(".jFlowControl").eq(cur).addClass(selected_class);
		}

		$(".jFlowNext").click(function () {
			donext();
			dotimer();
		});

		var donext = function (x) {
			if (cur < maxi - 1)
				cur++;
			else
				cur = 0;

			$(".jFlowControl").removeClass(selected_class);
			$(opts.slides).animate({
				marginLeft: "-" + (cur * $(opts.slides).find(":first-child").width() + "px")
			}, opts.duration);
			$(".jFlowControl").eq(cur).addClass(selected_class);
		}

		var dotimer = function(x) {
			if (timer != null)
				clearInterval(timer);
			timer = setInterval(function() { donext(); }, 8000);
		};
		dotimer();
	};

	$.fn.jFlow.defaults = {
		easing: "swing",
		duration: 500,
		width: "100%"
	};

})(jQuery);