/* 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: 1.2 (July 7, 2008)

 * Requires: jQuery 1.2+

 * 

 * This is a modified version of the original jFlow with automatic scroll:

 * you can choose the scroll direction, modifing the 'direction' parameter 

 * ('left' or 'right') when calling the function on your document.

 * Edited by Mauro Belgiovine (geek89@gmail.com) on October 20, 2010.

 *

 * Modified again by Josh Darvill for spyka Webmaster templates, removing

 * the annoying Javascript Messages in IE6-8

 */

 

(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 - 1;

		var autoMove = opts.next;

		var displayDuration = 7500;

		

		// 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).fadeIn('200');

					$(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);

					if(opts.direction == 'right'){ //direction edit for controller

						that = maxi - i;

					} else {

						that = i;

					}

					var dur = Math.abs(cur-that);

					slide(dur,that);

					cur = that;

				}

			});

		});	

		

		$(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());

		});

		

		//direction settings

		if(opts.direction == 'right'){

			cur = maxi; //starting from last slide

			autoMove = opts.prev; //changing the auto-scroll direction

			$(opts.slides).children().each(function(e){ //inverting the slide order

				if(e > 0){

					var child = $(this).detach();

					$(opts.slides).prepend(child);

				}

			});

		}

		

		

		//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;

					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)

					cur++;

				else {

					cur = 0;

					dur = maxi;

				}

				$(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() {

	                	$(autoMove).click();

						}, displayDuration);

			}

		}



		dotimer();

	};

	

	$.fn.jFlow.defaults = {

		controller: ".jFlowControl", // must be class, use . sign

		slideWrapper : "#jFlowSlide", // must be id, use # sign

		selectedWrapper: "jFlowSelected",  // just pure text, no sign

		auto: false,

		direction: 'left', //'left' (default) or 'right'

		easing: "swing",

		duration: 400,

		width: "100%",

		prev: ".jFlowPrev", // must be class, use . sign

		next: ".jFlowNext" // must be class, use . sign

	};

	

})(jQuery);