/* Copyright (c) 2010 WordImpressed.com jFlow Plus derived from Kean Loong Tan's orgininal jFlow http://www.wordimpressed.com
 * Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * jFlow 1.2 (Plus)
 * Version: jFlow Plus
 * Requires: jQuery 1.2+
 */ 

(function($) {

    $.fn.jFlow = function(options) {

        var opts = $.extend({}, $.fn.jFlow.defaults, options);
        var randNum = Math.floor(Math.random()*11);
        var jFC = opts.controller;
        var jFS =  opts.slideWrapper;
        var jSel = opts.selectedWrapper;
        var cur = 0;
        var timer;
        var maxi = $(jFC).length;

        // sliding function

        var slide = function (dur, i) {

            $(opts.slides).children().css({
                overflow:"hidden"
            });

            $(opts.slides + " iframe").hide().addClass("temp_hide");

            $(opts.slides).animate({
                marginLeft: "-" + (i * $(opts.slides).find(":first-child").width() + "px")
            },

            opts.duration*(dur),

                opts.easing,

                function(){

                    $(opts.slides).children().css({
                        overflow:"hidden"
                    });

                    $(".temp_hide").show();
                }

                );

        }

        $(this).find(jFC).each(function(i){

            $(this).click(function(){

                dotimer();

                if ($(opts.slides).is(":not(:animated)")) {

                    $(jFC).removeClass(jSel);
                    $(this).addClass(jSel);
                    var dur = Math.abs(cur-i);
                    slide(dur,i);
                    cur = i;
                }

            });

        });

        $(opts.slides).before('<div id="'+jFS.substring(1, jFS.length)+'"></div>').appendTo(jFS);

        $(opts.slides).find("div").each(function(){
            $(this).before('<div class="jFlowSlideContainer"></div>').appendTo($(this).prev());

        });
		

        //initialize the controller

        $(jFC).eq(cur).addClass(jSel);

        var resize = function (x){

            $(jFS).css({

                position:"relative",
                width: opts.width,
                height: opts.height,
                overflow: "hidden"
            });

            //opts.slides or #mySlides container

            $(opts.slides).css({

                position:"relative",
                width: $(jFS).width()*$(jFC).length+"px",
                height: $(jFS).height()+"px",
                overflow: "hidden"
            });

            // jFlowSlideContainer

            $(opts.slides).children().css({

                position:"relative",
                width: $(jFS).width()+"px",
                height: $(jFS).height()+"px",
                "float":"left",
                overflow:"hidden"
            });
			

            $(opts.slides).css({
                marginLeft: "-" + (cur * $(opts.slides).find(":eq(0)").width() + "px")
            });

        }
		

        // sets initial size

        resize();

        // resets size

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

        $(opts.prev).click(function(){
            dotimer();
            doprev();
        });

        $(opts.next).click(function(){
            dotimer();
            donext();
        });
		

        var doprev = function (x){

            if ($(opts.slides).is(":not(:animated)")) {

                var dur = 1;
                if (cur > 0)
                    cur--;
                else {
                    cur = maxi -1;
                    dur = cur;
                }

                $(jFC).removeClass(jSel);
                slide(dur,cur);
                $(jFC).eq(cur).addClass(jSel);
            }

        }

        var donext = function (x){

            if ($(opts.slides).is(":not(:animated)")) {

                var dur = 1;

                if (cur < maxi - 1)
                    cur++;
                else {
                    cur = 0;
                    dur = maxi -1;
                }

                $(jFC).removeClass(jSel);
                //$(jFS).fadeOut("fast");

                slide(dur, cur);
                //$(jFS).fadeIn("fast");

                $(jFC).eq(cur).addClass(jSel);
            }

        }		

        var dotimer = function (x){

            if((opts.auto) == true) {

                if(timer != null)
                    clearInterval(timer);

                timer = setInterval(function() {
                    $(opts.next).click();
                }, 5000);

            }
        }


        //Pause/Resume function fires at hover

        dotimer();
		
        $(opts.slides).hover(
			
            function() {
                clearInterval(timer);
            },
		
            function() {
                dotimer();
            }
		
            );
    };
	

    $.fn.jFlow.defaults = {

        controller: "#myController", // must be class, use . sign
        slideWrapper : "#mySlides", // must be id, use # sign
        selectedWrapper: ".jFlowSelected",  // just pure text, no sign
        auto: true,
        easing: "swing",
        duration: 400,
        width: "100%",
        prev: ".jFlowPrev", // must be class, use . sign
        next: ".jFlowNext" // must be class, use . sign
    };


})(jQuery);