/* 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(jQuery) {
jQuery.fn.jFlow = function(options) {
var opts = jQuery.extend({}, jQuery.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 = jQuery(jFC).length;
// sliding function
var slide = function (dur, i) {
jQuery(opts.slides).children().css({
overflow:"hidden"
});
jQuery(opts.slides + " iframe").hide().addClass("temp_hide");
jQuery(opts.slides).animate({
marginLeft: "-" + (i * jQuery(opts.slides).find(":first-child").width() + "px")}, 
opts.duration*(dur),
opts.easing,
function(){
jQuery(opts.slides).children().css({
overflow:"auto"
});
jQuery(".temp_hide").show();
}
);
}
jQuery(this).find(jFC).each(function(i){
jQuery(this).click(function(){
if (jQuery(opts.slides).is(":not(:animated)")) {
jQuery(jFC).removeClass(jSel);
jQuery(this).addClass(jSel);
var dur = Math.abs(cur-i);
slide(dur,i);
cur = i;
}
});
});	
jQuery(opts.slides).before('<div id="'+jFS.substring(1, jFS.length)+'"></div>').appendTo(jFS);
jQuery(opts.slides).find("div").each(function(){
jQuery(this).before('<div class="jFlowSlideContainer"></div>').appendTo(jQuery(this).prev());
});
//initialize the controller
jQuery(jFC).eq(cur).addClass(jSel);
var resize = function (x){
jQuery(jFS).css({
position:"relative",
width: opts.width,
height: opts.height,
overflow: "hidden"
});
//opts.slides or #mySlides container
jQuery(opts.slides).css({
position:"relative",
width: jQuery(jFS).width()*jQuery(jFC).length+"px",
height: jQuery(jFS).height()+"px",
overflow: "hidden"
});
// jFlowSlideContainer
jQuery(opts.slides).children().css({
position:"relative",
width: jQuery(jFS).width()+"px",
height: jQuery(jFS).height()+"px",
"float":"left",
overflow:"auto"
});
jQuery(opts.slides).css({
marginLeft: "-" + (cur * jQuery(opts.slides).find(":eq(0)").width() + "px")
});
}
// sets initial size
resize();
// resets size
jQuery(window).resize(function(){
resize();						  
});
jQuery(opts.prev).click(function(){
if (jQuery(opts.slides).is(":not(:animated)")) {
var dur = 1;
if (cur > 0)
cur--;
else {
cur = maxi -1;
dur = cur;
}
jQuery(jFC).removeClass(jSel);
slide(dur,cur);
jQuery(jFC).eq(cur).addClass(jSel);
}
});
jQuery(opts.next).click(function(){
if (jQuery(opts.slides).is(":not(:animated)")) {
var dur = 1;
if (cur < maxi - 1)
cur++;
else {
cur = 0;
dur = maxi -1;
}
jQuery(jFC).removeClass(jSel);
slide(dur, cur);
jQuery(jFC).eq(cur).addClass(jSel);
}
});
};
jQuery.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: "250px",
prev: ".jFlowPrev", // must be class, use . sign
next: ".jFlowNext" // must be class, use . sign
};
})(jQuery);