/* 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")
            });

            // Show arrows if needed
            if (maxi > 1) $('.jFlowNext').fadeIn(0);
        }

        resize();

        $(window).resize(function(){
            resize();
        });

        $(".jFlowPrev").click(function(){
            dotimer();
            doprev();
            return false;
        });
		
        var doprev = function (x){
            if (cur > 0) {
                cur--;
                $('.jFlowNext').fadeIn(1000);
                if (cur == 0) {
                    $('.jFlowPrev').fadeOut(1000);
                } else {
                    $('.jFlowPrev').fadeIn(1000);
                }
            } else {
                return false;
            }

            $(".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();
            return false;
        });

        var donext = function (x){
            if (cur < maxi - 1) {
                cur++;
                $('.jFlowPrev').fadeIn(1000);
                if (cur == maxi - 1) {
                    $('.jFlowNext').fadeOut(1000);
                } else {
                    $('.jFlowNext').fadeIn(1000);
                }
            } else {
                return false;
            }

            $(".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();
            }, 16000);
    	        	
        }

        dotimer();
    };

    $.fn.jFlow.defaults = {
        easing: "swing",
        duration: 400,
        width: "100%"
    };

})(jQuery);