jQuery Easing Slider

jQuery.noConflict();

jQuery(window).load(function(){
    var $featured_content = jQuery('#featured'),
        et_featured_slider_pause = jQuery("meta[name=et_featured_slider_pause]").attr('content'),
        et_featured_slider_auto = jQuery("meta[name=et_featured_slider_auto]").attr('content'),
        et_featured_auto_speed = jQuery("meta[name=et_featured_auto_speed]").attr('content');

    if ($featured_content.length) {
        var $featured_slides = $featured_content.find('.slide').show(),
            slides_pos = [],
            slides_zindex = [],
            active_slide_width = 500,
            small_slide_width = 250,
            slide_margin = 16,
            featured_animation = 'easeInOutQuad', //'easeInOutQuad','easeInOutQuint', 'easeInOutQuart'
            et_animation_running = false,
            last_slide = false,
            pause_scroll = false,
            top_slide_pos,
            left_slide_pos,
            slide_opacity;

        $featured_content.css( 'backgroundImage', 'none' );

        $featured_slides.each(function(index, domEle){
            var $this_slide = jQuery(domEle);

            top_slide_pos = 82;
            slide_opacity = 0.3;

            if ( index === 0 ) {
                top_slide_pos = 0;
                slide_opacity = 1;
                left_slide_pos = 230;
            }
            if ( index === 1 ) left_slide_pos = 620;
            if ( index === 2 ) left_slide_pos = 90;
            if ( index > 2 ) {
                if ( index % 2 === 1 ) left_slide_pos = slides_pos[index-2].left + small_slide_width + slide_margin;
                else left_slide_pos = slides_pos[index-2].left - small_slide_width - slide_margin;
            }

            if ( index !== 0 ) {
                $this_slide.find('img').attr({
                    width: '250',
                    height: '169'
                });
            }

            slides_pos[index] = {
                width: $this_slide.width(),
                top: top_slide_pos,
                left: left_slide_pos,
                opacity: slide_opacity
            };

            $this_slide.css('zIndex',$featured_slides.length-index);
            slides_zindex[index] = $this_slide.css('zIndex');

            $this_slide.animate(slides_pos[index],100);
            jQuery(domEle).data('slide_pos',index);
        });

        jQuery('a.nextslide').live('click',function(event){
            event.preventDefault();
            if (!et_animation_running) rotate_slide('next');
            if ( typeof(et_auto_animation) !== 'undefined' ) clearInterval(et_auto_animation);
        });

        jQuery('a.prevslide').live('click',function(event){
            event.preventDefault();
            if (!et_animation_running) rotate_slide('prev');
            if ( typeof(et_auto_animation) !== 'undefined' ) clearInterval(et_auto_animation);
        });

        $featured_slides.hover(function(){
            if ( !et_animation_running ) {
                if ( jQuery(this).hasClass('active') ){
                    jQuery(this).find('.additional').stop(true, true).animate({'opacity':'show'},300);
                }
            }
            if ( et_featured_slider_pause == 1 ) pause_scroll = true;
        },function(){
            if ( !et_animation_running ) {
                jQuery(this).find('.additional').stop(true, true).animate({'opacity':'hide'},300);
            }
            if ( et_featured_slider_pause == 1 ) pause_scroll = false;
        });

        var et_mousex = 0,
            et_mousey = 0,
            featured_activeslide_x = $featured_content.find('.container').offset().left + 230,
            featured_activeslide_y = $featured_content.find('.container').offset().top;

        jQuery(document).mousemove(function(e){
            et_mousex = e.pageX;
            et_mousey = e.pageY;
        });

        function rotate_slide(direction){
            $featured_slides.removeClass('active');

            $featured_slides.each(function(index, domEle){
                var $this_slide = jQuery(domEle),
                    next_slide_num = $this_slide.data('slide_pos');

                et_animation_running = true;
                last_slide = false;

                $featured_slides.find('.additional').css('display','none');

                if ( direction === 'next' ){
                    if ( next_slide_num === 0 ) next_slide_num = 2;
                    else if ( next_slide_num === 1 ) next_slide_num = 0;
                    else if ( $featured_slides.length % 2 === 0 && next_slide_num === ( $featured_slides.length - 2 ) ) {
                        next_slide_num = $featured_slides.length - 1;
                    }
                    else {
                        if ( next_slide_num !== ($featured_slides.length - 1) ) {
                            if ( next_slide_num % 2 === 0 )  next_slide_num = next_slide_num + 2;
                            else next_slide_num = next_slide_num - 2;
                        } else {
                            if ( $featured_slides.length % 2 === 0 ) {
                                if ( next_slide_num % 2 === 0 )  next_slide_num = next_slide_num + 2;
                                else next_slide_num = next_slide_num - 2;
                            }
                            else {
                                next_slide_num = $featured_slides.length - 2;
                                last_slide = true;
                            }
                        }
                    }
                } else {
                    if ( next_slide_num === 0 ) next_slide_num = 1;
                    else if ( $featured_slides.length % 2 === 0 && next_slide_num === ( $featured_slides.length - 1 ) ) {
                        next_slide_num = $featured_slides.length - 2;
                    }
                    else {
                        if ( $featured_slides.length % 2 === 0 ) {
                            if ( next_slide_num % 2 === 0 ) next_slide_num = next_slide_num - 2;
                            else next_slide_num = next_slide_num + 2;
                        } else {
                            if ( next_slide_num !== ($featured_slides.length - 2) ) {
                                if ( next_slide_num % 2 === 0 ) next_slide_num = next_slide_num - 2;
                                else next_slide_num = next_slide_num + 2;
                            } else {
                                next_slide_num = $featured_slides.length-1;
                                last_slide = true;
                            }
                        }
                    }
                }

                if ( last_slide ) {
                    $this_slide.css('left',slides_pos[next_slide_num].left);
                }

                $this_slide.stop(true, true).animate(slides_pos[next_slide_num],600,featured_animation,function(){
                    if ( index === $featured_slides.length - 1 ) et_animation_running = false;

                    if ( !et_animation_running ) {
                        if ( et_mousex > featured_activeslide_x && et_mousex < (featured_activeslide_x + 500) && et_mousey > featured_activeslide_y && et_mousey < (featured_activeslide_y + 335) ){
                            if ( next_slide_num === 0 ) $featured_content.find('.slide').filter(':eq('+($featured_slides.length - 1)+')').find('.additional').stop(true, true).animate({'opacity':'show'},300);
                            else $featured_content.find('.active .additional').stop(true, true).animate({'opacity':'show'},300);

                            if ( et_featured_slider_pause == 1 ) pause_scroll = true;
                        }
                    }
                });
                if ( next_slide_num != 0 ) {
                    $this_slide.find('img').stop(true, true).animate({'width':'250px','height':'169px'},600,featured_animation);
                }
                else {
                    $this_slide.find('img').stop(true, true).animate({'width':'500px','height':'335px'},600,featured_animation,function(){
                        $this_slide.addClass('active');
                    });
                }

                setTimeout(function(){
                    $this_slide.css({zIndex: slides_zindex[next_slide_num]});
                },300);

                $this_slide.data('slide_pos',next_slide_num);
            });
        }

        if ( et_featured_slider_auto == 1 ) {
            et_auto_animation = setInterval(function(){
                if ( !pause_scroll ) rotate_slide('next');
            }, et_featured_auto_speed);
        }
    }

}