(function($) {
    $.fn.jDiaporama = function(settings) {
        settings = jQuery.extend({
            start                   : 1,                                //A partir de quelle diapo démare t-on le diaporama
            delai                   : 3000,                             //Delai entre les transitions
            auto                    : true,                             //Défilement automatique ?
            speed                   : 'slow',                           //Vitesse des executions
            controls                : false,                            //Affiche t-on les boutons 1-2-3-4 pour controler le défilement
            div_control             : false,                            //Impose t-on l'endroit dans lequel seront les controls
            div_slider              : 'div_slider',                     //
            transition              : 'move',                           //Type de transition : move pour le déplacement, fade pour le fondu
            controls_position       : 'bottom',
            controls_height         : 40,
            control_btn_space       : 10,
            control_btn             : 'control_diaporama_bouton',
            control_btn_on          : 'control_diaporama_bouton_on',
            controls_separator      : false,                            //Texte ou symbole entre chaque numéro
            controls_tag            : 'div',                            //Tag des boutons control
            arrows                  : true,
            prev                    : 'div.arrow_left',
            next                    : 'div.arrow_right',
            prevnext_hide           : true,                             //Masque t-on les fleches suivant precedent ou leur affiche-t-on une classe
            direction               : 'horizontal',
            navigation_visible      : false,
            jDiaporama_next_item    : 'jDiaporama_next_item',   //Class de l'element next item
            jDiaporama_prev_item    : 'jDiaporama_prev_item',   //Class de l'element prev item
            arrow_class_on          : 'arrow_on',
            arrow_class_off         : 'arrow_off',
            calcul_height           : false,                    //Auto calcul de la hauteur
            hack                    : false,                    //Dev spe ?
            txt_info                : false,                    //Affiche-ton un texte d'infos ?
            txt_info_wrapper        : '#txt_info',
            txt_info_txt_before     : 'Page ',
            txt_info_txt_between    : '/',
            diaporama_id            : false,                    //ID du diaporama pour controler apparence des boutons ou autre
            hack_actu               : false,                    //HACK POUR NOVIUS 2011
            callback                : false                     //Fontion à appeler lorsque la div a fini de slider
        },settings);

        if (!$(this).length) return;

        var start = settings.start;
        var delai = settings.delai;
        var nbDiapos = this.children('div').length;
        var diapos = new Array();
        var boutons = new Array();
        var tab_timeout = new Array();
        var nom_timeout = 'delai_' + Math.ceil(Math.random() * 10000);

        //ID que l'on rajoute dans l'#id des boutons
        if (!settings.diaporama_id)
            var after_id = '_' + Math.ceil(Math.random() * 10000);
        else
            var after_id = settings.diaporama_id;

        var hauteur_max = 0;
        var pos = $(this).donne_position();
        var is_timeout = false;
        var conteneur = this;
        var width_conteneur = $(this).width();
        var height_conteneur = $(this).height();

        var last_diapo = '';
        var in_motion = false;
        var page_max_visible = false;
        var page_min_visible = false;
        var nb_pages = false;

        var max_height_item = 0;
        var items_height = new Array();

        //$(this).hide();

        //si le settings.start est trop haut, on le repositionne
        if (start > nbDiapos) start = 1;
        var diapo_en_cours = start;
        if (settings.hack == 'simul_titre') {
            var max_height_titre = 0;
        }

        if (settings.direction == 'horizontal') {
            this.children('div').each(function (i) {
                //Spécifique Francos TV droite
                if (settings.hack == 'simul_titre') {
                    var height_infos = $(this).children('div.info_video').height();
                    if (height_infos > max_height_titre) max_height_titre = height_infos;
                }
                //on voit quelle div est la plus haute pour définir la hauteur max du diaporama
                if ($(this).height() > hauteur_max) hauteur_max = $(this).height();
                var controle_start = i + 1;
                if (i+1 == nbDiapos){
                    last_diapo = $(this);
                }
                diapos[controle_start] = $(this);

                switch (settings.transition) {
                case 'move' :
                    var new_margin = i * width_conteneur;
                    $(this).css({width : width_conteneur + 'px', position : 'absolute', marginLeft: new_margin + 'px'});
                    break;
                case 'fade' :
                    $(this).hide();
                    break;
                }
            });
            if (settings.hack == 'simul_titre') {
                $('#simul_titre').height(max_height_titre);
                var new_conteneur_height = conteneur.height() + max_height_titre + 5;
                conteneur.height(new_conteneur_height);
            }
        } else if (settings.direction == 'vertical' && settings.calcul_height) {
            //max_height_item
            this.children('div').each(function (i) {
                items_height[(i+1)] = $(this).height();
                if ($(this).height() > max_height_item)
                    max_height_item = $(this).height();
            });
            this.children('div').each(function (i) {
                $(this).height(max_height_item);
            });
            $(this).height(max_height_item);
            height_conteneur = max_height_item;
        }

        /*else if (settings.direction == 'vertical' && settings.calcul_height) {
            this.children('div').each(function (i) {
                items_height[(i+1)] = $(this).height();
            });
        }*/

        $(this).fadeIn('slow');

        $(this).wrapInner('<div id="' + settings.div_slider + '"></div>');
        $('#' + settings.div_slider).css({position : 'relative', height : hauteur_max});

        var prevnext_hide = settings.prevnext_hide;

        function desactive_arrow(arrow) {
            var t_class = arrow.attr('class');
            if (t_class && t_class != settings.arrow_class_off) {
                arrow.removeClass(t_class);
            }
            arrow.addClass(settings.arrow_class_off);
        }

        function active_arrow(arrow) {
            var t_class = arrow.attr('class');
            if (t_class && t_class != settings.arrow_class_on) {
                arrow.removeClass(t_class);
            }
            arrow.addClass(settings.arrow_class_on);
        }

        //parametrage des fleches
        if (settings.arrows) {
            if (settings.transition == 'move') {
                $(settings.prev).click(function(){

                    if (!prevnext_hide && $(this).attr('class') == settings.arrow_class_off) return false;

                    if (!in_motion) {

                        //hack novius
                        if (settings.hack_actu) {
                            desactive_cur_actu(true);
                        }

                        if (is_timeout) {
                            clearTimeout(tab_timeout[nom_timeout]);
                            is_timeout = false;
                        }
                        if (prevnext_hide) {
                            $(this).fadeOut();
                        } else {
                            desactive_arrow($(this));
                        }
                        diapo_precedente();
                        in_motion = true;
                    }
                });
                $(settings.next).click(function(){

                    if (!prevnext_hide && $(this).attr('class') == settings.arrow_class_off) return false;

                    if (!in_motion) {

                        //hack novius
                        if (settings.hack_actu) {
                            desactive_cur_actu(true);
                        }

                        if (is_timeout) {
                            clearTimeout(tab_timeout[nom_timeout]);
                            is_timeout = false;
                        }
                        if (prevnext_hide) {
                            $(this).fadeOut();
                        } else {
                            desactive_arrow($(this));
                        }
                        diapo_suivante();
                        in_motion = true;
                    }
                });
            }
        }

        function diapo_suivante() {
            if (nbDiapos <= 1) return false;
            var diapo_a_montrer = diapo_en_cours + 1;
            if (diapo_a_montrer > nbDiapos) diapo_a_montrer = 1;
            active_diapo(diapo_a_montrer, true);
            if (is_timeout)
                tab_timeout[nom_timeout] = setTimeout(function() { diapo_suivante(); }, delai);
        }

        function diapo_precedente() {
            if (nbDiapos <= 1) return false;
            var diapo_a_montrer = diapo_en_cours - 1;
            if (diapo_a_montrer < 1) diapo_a_montrer = nbDiapos;
            active_diapo(diapo_a_montrer, true);
            if (is_timeout)
                tab_timeout[nom_timeout] = setTimeout(function() { diapo_precedente(); }, delai);
        }

        function active_diapo(id_diapo, anim) {
            //

            var cur_diapo = diapos[diapo_en_cours];
            var diapo = diapos[id_diapo];
            var save_cur_diapo = diapo_en_cours;

            switch (settings.transition) {
            case 'move' :
                switch (settings.direction) {
                case 'horizontal' :

                    var new_position = -((id_diapo - 1) * width_conteneur);
                    $('#' + settings.div_slider).animate({
                        'left': new_position + 'px'},
                        'slow',
                        function(){
                            in_motion = false;

                            //Affichage des fleches
                            if (settings.arrows) {
                                if (id_diapo == 1) {
                                    if (nbDiapos > 1) {
                                        if (prevnext_hide) {
                                            $(settings.next).fadeIn('fast');
                                        } else {
                                            active_arrow($(settings.next));
                                        }
                                    } else {
                                        if (prevnext_hide) {
                                            $(settings.next).fadeOut('fast');
                                        } else {
                                            desactive_arrow($(settings.next));
                                        }
                                    }
                                    if (prevnext_hide) {
                                        $(settings.prev).fadeOut('fast');
                                    } else {
                                        desactive_arrow($(settings.prev));
                                    }
                                } else if (id_diapo == nbDiapos) {
                                    if (prevnext_hide) {
                                        $(settings.prev).fadeIn('fast');
                                        $(settings.next).fadeOut('fast');
                                    } else {
                                        active_arrow($(settings.prev));
                                        desactive_arrow($(settings.next));
                                    }
                                } else {
                                    if (prevnext_hide) {
                                        $(settings.prev).fadeIn('fast');
                                        $(settings.next).fadeIn('fast');
                                    } else {
                                        active_arrow($(settings.prev));
                                        active_arrow($(settings.next));
                                    }
                                }
                            }

                            if (settings.callback) {
                                eval(settings.callback + '(' + id_diapo + ', ' + save_cur_diapo + ')');
                            }
                    });

                    break;

                case 'vertical' :

                    var new_position = -((id_diapo - 1) * height_conteneur);


                    $(settings.div_slider).animate({
                        //height : items_height[id_diapo],
                        'top': new_position + 'px'},
                        'slow',
                        function(){
                            in_motion = false;
                            if (settings.arrows) {
                                if (id_diapo == 1) {
                                    if (nbDiapos > 1) {
                                        $(settings.next).fadeIn('fast');
                                    } else
                                        $(settings.next).fadeOut('fast');
                                    $(settings.prev).fadeOut('fast');
                                } else if (id_diapo == nbDiapos) {
                                    $(settings.prev).fadeIn('fast');
                                    $(settings.next).fadeOut('fast');
                                } else {
                                    $(settings.prev).fadeIn('fast');
                                    $(settings.next).fadeIn('fast');
                                }
                            }
                            if (settings.calcul_height) {
                                //$(settings.div_slider).animate({height : items_height[id_diapo]});
                                $(settings.div_slider).height(items_height[id_diapo]);
                            }
                    });

                    break;
                }


                break;
            case 'fade' :
                cur_diapo.hide();
                diapo.fadeIn(settings.speed);
                break;
            }

            //Affichage du texte d'infos
            if (settings.txt_info) {
                var txt_info_wrapper = $(settings.txt_info_wrapper);
                txt_info_wrapper.html(settings.txt_info_txt_before + id_diapo + settings.txt_info_txt_between + nbDiapos);
            }

            if(settings.controls && settings.control_btn_on) {
                if (isset(boutons[diapo_en_cours])) {
                    var cur_bouton = boutons[diapo_en_cours];
                    var bouton = boutons[id_diapo];
                    cur_bouton.removeClass(settings.control_btn_on);
                    cur_bouton.addClass(settings.control_btn);
                    bouton.removeClass(settings.control_btn);
                    bouton.addClass(settings.control_btn_on);
                }
            }
            diapo_en_cours = id_diapo;
        }

        function init_controls() {
            var div_conteneur = create_controls_div();
        }

        function create_controls_div() {
            if (nbDiapos < 2) {
                $('#' + settings.div_control).html('');
                return;
            }
            var html = '';
            for (i = 1; i <= nbDiapos; i++) {
                if (settings.controls_separator && i > 1) {
                    html = html + settings.controls_separator;
                }
                html = html + '<' + settings.controls_tag + ' id="btn_' + i + after_id + '">' + i + '</' + settings.controls_tag + '>';
                nb_pages = i;
            }

            if (settings.div_control) {
                $('#' + settings.div_control).html(html);
                var identifiant_control = '#' + settings.div_control;
            } else {
                var html = '<div class="control_diaporama"></div>';
                var identifiant_control = '.control_diaporama';
            }
            var affiche_fleche_suivant = false;
            $(identifiant_control).children(settings.controls_tag).each(function (i) {
                if (i) {
                    if (settings.control_btn_space) {
                        $(this).before('<div style="float:left; height:1px; width:' + settings.control_btn_space + 'px;"></div>');
                    }
                }
                if (settings.navigation_visible && (i + 1 > settings.navigation_visible)) {
                    $(this).hide();
                    affiche_fleche_suivant = true;
                    page_max_visible = settings.navigation_visible;
                    page_min_visible = 1;
                }
                //$(this).css({ float: 'left'});
                $(this).addClass(settings.control_btn)
                .click(function(){
                    if (diapo_en_cours == (i + 1)) return false;
                    if (is_timeout) {
                        clearTimeout(tab_timeout[nom_timeout]);
                        is_timeout = false;
                    }
                    active_diapo(i + 1);
                });
                boutons[i+1] = $(this);
            });
            if (affiche_fleche_suivant) {
                $(identifiant_control).prepend('<div id="prev' + after_id + '" class="' + settings.jDiaporama_prev_item + '"></div>&nbsp;&nbsp;&nbsp;');
                $(identifiant_control).append('<div id="next' + after_id + '" class="' + settings.jDiaporama_next_item + '"></div>');
                $('#prev' + after_id).removeClass(settings.jDiaporama_prev_item);
                $('#prev' + after_id).click(function(){
                    var new_id = diapo_en_cours - 1;
                    var nom_id_btn = 'btn_' + new_id + after_id;
                    $('#' + nom_id_btn).click();

                    if (new_id < page_min_visible) {
                        $('#' + nom_id_btn).show();
                        page_min_visible = new_id;

                        $('#btn_' + page_max_visible + after_id).hide();
                        page_max_visible = page_max_visible - 1;
                    }
                    if (new_id < nb_pages) {
                        $('#next' + after_id).addClass(settings.jDiaporama_next_item);
                    }
                    if (new_id == 1) {
                        $(this).removeClass(settings.jDiaporama_prev_item);
                    }
                });
                $('#next' + after_id).click(function(){
                    var new_id = diapo_en_cours + 1;
                    var nom_id_btn = 'btn_' + new_id + after_id;
                    $('#' + nom_id_btn).click();

                    if (new_id > page_max_visible) {
                        $('#' + nom_id_btn).show();
                        page_max_visible = new_id;

                        $('#btn_' + page_min_visible + after_id).hide();
                        page_min_visible = page_min_visible + 1;
                    }
                    if (new_id > 1) {
                        $('#prev' + after_id).addClass(settings.jDiaporama_prev_item);
                    }
                    if (new_id == nb_pages) {
                        $(this).removeClass(settings.jDiaporama_next_item);
                    }

                });
            }
            //$('.' + settings.control_btn).css({opacity : 0.8});
        }

        if (settings.auto) {
            tab_timeout[nom_timeout] = setTimeout(function() { diapo_suivante(); }, delai);
            is_timeout = true;
        }
        if (settings.controls)
            init_controls();

        active_diapo(diapo_en_cours, false);

    };
    jQuery.fn.extend({
        donne_position : function() {
            var obj = $(this).get(0);
            if (isset(obj)) {
                var curleft = obj.offsetLeft || 0;
                var curtop = obj.offsetTop || 0;
                while (obj = obj.offsetParent) {
                         curleft += obj.offsetLeft;
                         curtop += obj.offsetTop;
                }
                return {x:curleft,y:curtop};
            }
        }
    });
})(jQuery);

function intval (mixed_var, base) {

    var tmp;

    var type = typeof( mixed_var );

    if (type === 'boolean') {
        return (mixed_var) ? 1 : 0;
    } else if (type === 'string') {
        tmp = parseInt(mixed_var, base || 10);
        return (isNaN(tmp) || !isFinite(tmp)) ? 0 : tmp;
    } else if (type === 'number' && isFinite(mixed_var) ) {
        return Math.floor(mixed_var);
    } else {
        return 0;
    }
}

function isset () {

    var a = arguments, l = a.length, i = 0, undef;
    if (l === 0) {
        throw new Error('Empty isset');
    }
        while (i !== l) {
        if (a[i] === undef || a[i] === null) {
            return false;
        }
        i++;     }
    return true;
}