/*
 * jQuery infinitecarousel plugin
 * @author admin@catchmyfame.com - http://www.catchmyfame.com
 * @version 1.0
 * @date April 29, 2009
 * @category jQuery plugin
 * @copyright (c) 2009 admin@catchmyfame.com (www.catchmyfame.com)
 * @license CC Attribution-No Derivative Works 3.0 - http://creativecommons.org/licenses/by-nd/3.0/
 */

(function($){
        $.fn.extend({
                infiniteCarousel: function(options)
                {
                        var defaults =
                        {
                                transitionSpeed : 1500,
                                displayTime : 6000,
                                textholderHeight : .2,
                                displayProgressBar : 1
                        };
                var options = $.extend(defaults, options);

                    return this.each(function() {
                            var randID = Math.round(Math.random()*100000000);
                                var o=options;
                                var obj = $(this);

                                var numImages = $('img', obj).length; // Number of images
                                var imgHeight = $('img:first', obj).height();
                                var imgWidth = $('img:first', obj).width();
                                var autopilot = 1;

                                // Initialize the carousel
                                $('ul', obj).css({'margin':'0','padding':'0','position':'relative','list':'none','width':imgWidth*numImages+'px'});
                                $('li', obj).css({'display':'inline','float':'left'});
                                $('p', obj).hide(); // Hide any text paragraphs in the carousel
                                $(obj).width(imgWidth).height(imgHeight);

                                // Build progress bar
                                if(o.displayProgressBar)
                                {
                                        $(obj).append('<div id="progress'+randID+'" style="position:absolute;bottom:0;background:#156991;left:'+$(obj).css('paddingLeft')+'"></div>');
                                        $('#progress'+randID).width(imgWidth).height(5).css('opacity','.5');
                                }

                                // Move last image and stick it on the front
                                $(obj).css({'overflow':'hidden','position':'relative'});
                                $('li:last', obj).prependTo($('ul', obj));
                                $('ul', obj).css('left',-imgWidth+'px');

                                // Build textholder div thats as wide as the carousel and 20%-25% of the height
                                $(obj).append('<div id="textholder'+randID+'" class="textholder" style="position:absolute;bottom:0px;margin-bottom:'+-imgHeight*o.textholderHeight+'px;left:'+$(obj).css('paddingLeft')+'"></div>');
                                var correctTHWidth = parseInt($('#textholder'+randID).css('paddingTop'));
                                var correctTHHeight = parseInt($('#textholder'+randID).css('paddingRight'));
                                $('#textholder'+randID).width(imgWidth-(correctTHWidth * 2)).height((imgHeight*o.textholderHeight)-(correctTHHeight * 2)).css({'backgroundColor':'#000','opacity':'0.7'});
                                showtext($('li:eq(1) p', obj).html());

                                // Prev/next button(img)
                                html = '<div id="btn_rt'+randID+'" style="position:absolute;right:0;top:'+((imgHeight/2)-15)+'px"><a href="javascript:void(0);"><img style="border:none;margin-right:2px" src="images/rt.png" /></a></div>';
                                html += '<div id="btn_lt'+randID+'" style="position:absolute;left:0;top:'+((imgHeight/2)-15)+'px"><a href="javascript:void(0);"><img style="border:none;margin-left:2px" src="images/lt.png" /></a></div>';
                                $(obj).append(html);

                                // Pause/play button(img)
                                html = '<a href="javascript:void(0);"><img id="pause_btn'+randID+'" src="images/pause.png" style="position:absolute;top:3px;right:3px;border:none" alt="Pause" /></a>';
                                html += '<a href="javascript:void(0);"><img id="play_btn'+randID+'" src="images/play.png" style="position:absolute;top:3px;right:3px;border:none;display:none;" alt="Play" /></a>';
                                $(obj).append(html);
                                $('#pause_btn'+randID).css('opacity','.5').hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.5'},250)});
                                $('#pause_btn'+randID).click(function(){
                                        autopilot = 0;
                                        $('#progress'+randID).stop().fadeOut();
                                        clearTimeout(clearInt);
                                        $('#pause_btn'+randID).fadeOut(250);
                                        $('#play_btn'+randID).fadeIn(250);
                                        showminmax();
                                });
                                $('#play_btn'+randID).css('opacity','.5').hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.5'},250)});
                                $('#play_btn'+randID).click(function(){
                                        autopilot = 1;
                                        anim('next');
                                        $('#play_btn'+randID).hide();
                                        clearInt=setInterval(function(){anim('next');},o.displayTime+o.transitionSpeed);
                                        setTimeout(function(){$('#pause_btn'+randID).show();$('#progress'+randID).fadeIn().width(imgWidth).height(5);},o.transitionSpeed);
                                });

                                // Left and right arrow image button actions
                                $('#btn_rt'+randID).css('opacity','.75').click(function(){
                                        autopilot = 0;
                                        $('#progress'+randID).stop().fadeOut();
                                        anim('next');
                                        setTimeout(function(){$('#play_btn'+randID).fadeIn(250);},o.transitionSpeed);
                                        clearTimeout(clearInt);
                                }).hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.75'},250)});
                                $('#btn_lt'+randID).css('opacity','.75').click(function(){
                                        autopilot = 0;
                                        $('#progress'+randID).stop().fadeOut();
                                        anim('prev');
                                        setTimeout(function(){$('#play_btn'+randID).fadeIn(250);},o.transitionSpeed);
                                        clearTimeout(clearInt);
                                }).hover(function(){$(this).animate({opacity:'1'},250)},function(){$(this).animate({opacity:'.75'},250)});

                                function showtext(t)
                                {
                                        // the text will always be the text of the second list item (if it exists)
                                        if(t != '')
                                        {
                                                $('#textholder'+randID).html(t).animate({marginBottom:'10px'},200); // Raise textholder
                                                showminmax();
                                        }
                                }
                                function showminmax()
                                {
                                                if(!autopilot)
                                                {
                                                        html = '<img style="position:absolute;top:2px;right:18px;display:none;cursor:pointer" src="images/down.png" title="Minimize" alt="minimize" id="min" /><img style="position:absolute;top:2px;right:18px;display:none;cursor:pointer" src="/jquery/up.png" title="Maximize" alt="maximize" id="max" />';
                                                        html += '<img style="position:absolute;top:2px;right:6px;display:none;cursor:pointer" src="images/close.png" title="Close" alt="close" id="close" />';
                                                        $('#textholder'+randID).append(html);
                                                        $('#min').fadeIn(250).click(function(){$('#textholder'+randID).animate({marginBottom:(-imgHeight*o.textholderHeight)-(correctTHHeight * 2)+24+'px'},500,function(){$("#min,#max").toggle();});});
                                                        $('#max').click(function(){$('#textholder'+randID).animate({marginBottom:'0px'},500,function(){$("#min,#max").toggle();});});
                                                        $('#close').fadeIn(250).click(function(){$('#textholder'+randID).animate({marginBottom:(-imgHeight*o.textholderHeight)-(correctTHHeight * 2)+'px'},500);});
                                                }
                                }
                                function anim(direction)
                                {
                                        // Fade left/right arrows out when transitioning
                                        $('#btn_rt'+randID).fadeOut(500);
                                        $('#btn_lt'+randID).fadeOut(500);

                                        // animate textholder out of frame
                                        $('#textholder'+randID).animate({marginBottom:-imgHeight*.25+'px'},500);

                                        //?? Fade out play/pause?
                                        $('#pause_btn'+randID).fadeOut(250);
                                        $('#play_btn'+randID).fadeOut(250);

                                        if(direction == "next")
                                        {
                                                // Copy leftmost (first) li and insert it after the last li
                                                $('li:first', obj).clone().insertAfter($('li:last', obj));
                                                // Update width and left position of ul and animate ul to the left
                                                $('ul', obj)
                                                        .width(imgWidth*(numImages+1))
                                                        .animate({left:-imgWidth*2},o.transitionSpeed,function(){
                                                                $('li:first', obj).remove();
                                                                $('ul', obj).css('left',-imgWidth+'px').width(imgWidth*numImages);
                                                                $('#btn_rt'+randID).fadeIn(500);
                                                                $('#btn_lt'+randID).fadeIn(500);
                                                                if(autopilot) $('#pause_btn'+randID).fadeIn(250);
                                                                showtext($('li:eq(1) p', obj).text());
                                                                if(autopilot)
                                                                {
                                                                        $('#progress'+randID).width(imgWidth).height(5);
                                                                        $('#progress'+randID).animate({'width':0},o.displayTime,function(){
                                                                                $('#pause_btn'+randID).fadeOut(50);
                                                                                setTimeout(function(){$('#pause_btn'+randID).fadeIn(250)},o.transitionSpeed)
                                                                        });
                                                                }
                                                        });
                                        }
                                        if(direction == "prev")
                                        {
                                                // Copy rightmost (last) li and insert it after the first li
                                                $('li:last', obj).clone().insertBefore($('li:first', obj));
                                                // Update width and left position of ul and animate ul to the right
                                                $('ul', obj)
                                                        .width(imgWidth*(numImages+1))
                                                        .css('left',-imgWidth*2+'px')
                                                        .animate({left:-imgWidth},o.transitionSpeed,function(){
                                                                $('li:last', obj).remove();
                                                                $('ul', obj).width(imgWidth*numImages);
                                                                $('#btn_rt'+randID).fadeIn(500);
                                                                $('#btn_lt'+randID).fadeIn(500);
                                                                if(autopilot) $('#pause_btn'+randID).fadeIn(250);
                                                                showtext($('li:eq(1) p', obj).text());
                                                        });
                                        }
                                }
                                var clearInt = setInterval(function(){anim('next');},o.displayTime+o.transitionSpeed);
                                $('#progress'+randID).animate({'width':0},o.displayTime+o.transitionSpeed,function(){
                                        $('#pause_btn'+randID).fadeOut(100);
                                        setTimeout(function(){$('#pause_btn'+randID).fadeIn(250)},o.transitionSpeed)
                                });
                  });
            }
        });
})(jQuery);