/* 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")
});
}

resize();

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

$(".jFlowPrev").click(function(){
dotimer();
doprev();
});

var doprev = function (x){
if (cur > 0)
cur--;
else
cur = maxi -1;

$(".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();
});

var donext = function (x){
if (cur < maxi - 1)
		  cur++;
		  else
		  cur = 0;
		  
		  $(".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();
		  }, 3000);
		  
		  }
		  
		  dotimer();
		  };
		  
		  $.fn.jFlow.defaults = {
		  easing: "swing",
		  duration: 400,
		  width: "100%"
		  };
		  
})(jQuery);