/**
 *
 * Copyright (c) 2010 Pedro Fuentes ( http://pedrofuent.es )
 * Dual licensed under the MIT and GPL licenses:
 * http://www.opensource.org/licenses/mit-license.php
 * http://www.gnu.org/licenses/gpl.html
 *
 **/
jQuery.fn.simpleSlide = function (a) {
    a = a || {};
    a.duration = a.duration || 5000;
    a.transition = a.transition || 1000;
    a.stopAt = a.stopAt || false;
    a.element = a.element || "img";

    var c = $(this); 

    $(c).css("position", "relative");

    $(a.element, $(c))
        .css({
            'position': 'absolute',
            'top': '0px',
            'left': '0px',
            'z-index': '8'
            })
        .find(":first")
            .addClass("slide-active")
            .css('z-index', '10');

    var cnt = 0;

    var interval = setInterval(function () {

        if (!isNaN(a.stopAt)) {
            cnt++;
            if (cnt == a.stopAt) {
                clearTimeout(interval);
            }
        }

        var $active = $(a.element + ".slide-active", $(c));

        if ($active.length == 0) $active = $(a.element + ":last", $(c));

        var $next = $active.next().length ? $active.next() : $(a.element + ":first", $(c));

        $active
            .addClass("slide-last-active")
            .css('z-index', '9');

        $next
            .css({ opacity: 0.0 })
            .addClass("slide-active")
            .css('z-index', '10')
            .animate({ opacity: 1.0 }, a.transition, function () {
                $active
                    .removeClass('slide-active slide-last-active')
                    .css('z-index', '8');
            });
        }, a.duration);
    }