/* 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 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:"auto"
});
$(".temp_hide").show();
}
);
}
$(this).find(jFC).each(function(i){
$(this).click(function(){
if ($(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:"auto"
});
$(opts.slides).css({
marginLeft: "-" + (cur * $(opts.slides).find(":eq(0)").width() + "px")
});
}
// sets initial size
resize();
// resets size
$(window).resize(function(){
resize();						  
});
$(opts.prev).click(function(){
if ($(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);
}
});
$(opts.next).click(function(){
if ($(opts.slides).is(":not(:animated)")) {
var dur = 1;
if (cur < maxi - 1)
cur++;
else {
cur = 0;
dur = maxi -1;
}
$(jFC).removeClass(jSel);
slide(dur, cur);
$(jFC).eq(cur).addClass(jSel);
}
});
};
$.fn.jFlow.defaults = {
controller: ".jFlowControl", // must be class, use . sign
slideWrapper : "#jFlowSlide", // must be id, use # sign
selectedWrapper: "jFlowSelected",  // just pure text, no sign
easing: "swing",
duration: 400,
width: "100%",
prev: ".jFlowPrev", // must be class, use . sign
next: ".jFlowNext" // must be class, use . sign
};
})(jQuery);