/* 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();

						}, 4000);
				

			}

		}


//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: 50,

		width: "100%",

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

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

	};


})(jQuery);