/* 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+
 */

(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(){
 $(this).before('<div></div>').appendTo($(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);
 }
 }

 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: true,
 easing: "swing",
 duration: 400,
 width: "100%",
 prev: ".jFlowPrev", // must be class, use . sign
 next: ".jFlowNext" // must be class, use . sign
 };

})(jQuery);