; !function (factory) {
    // amdģ�黯����
    if (typeof define === "function" && define.amd) {
        define(["jquery"], factory);
    } else {
        factory(jquery);
    }
}(function ($) {

    'use strict';

    var lzpreview = {

        version: '1.3.7',

        author: 'lzx',

        date: '2017-11-23'

    }

    $.extend({
        islzarray: function (v) {
            return object.prototype.tostring.call(v) === '[object array]';
        },
        islzobject: function (v) {
            return object.prototype.tostring.call(v) === '[object object]';
        },
        islzstring: function (v) {
            return object.prototype.tostring.call(v) === '[object string]';
        },
        islzbool: function (v) {
            return object.prototype.tostring.call(v) === '[object boolean]';
        },
        islzfunction: function (v) {
            return object.prototype.tostring.call(v) === '[object function]';
        },
        ispc: function () {
            var useragentinfo = navigator.useragent,
                agents = new array("android", "iphone", "symbianos", "windows phone", "ipad", "ipod"),
                flag = true;
            for (var v = 0; v < agents.length; v++) {
                if (useragentinfo.indexof(agents[v]) > 0) { flag = false; break; }
            }
            return flag;
        }
    });

    var previewevent = function (val, init) {
        this.$ele = $(val);
        this.param = this.$ele.data('lzpreview-param');
        this.init = init;
    }

    previewevent.prototype = {

        constructor: previewevent,

        setevent: function (plugin) {

            var event = this;
            this.plugin = plugin;

            $.each(this.param.event, function (index, val) {
                event[val] && event[val]();
            })
        },

        // reseize
        resize: function () {
            var me = this;
            var $this = this.$ele;
            var self = $this[0].previewmethods;
            var $dom = $("#lz-atlas-preview");
            $(window).resize(function () {
                self._calcsize();
                me.plugin.slidertoolb.refresh();
            });
        },

        // �رմ�ͼԤ��
        close: function () {
            var $dom = $("#lz-atlas-preview");
            var param = this.$ele.data('lzpreview-param');
            $dom.find('.lz-colsebut').on('click', function () {
                param.openzoom = false;
                $dom.fadeout(150, function () {
                    $dom.remove();
                    $('.lz-preview-meta').remove();
                });
            });
        },

        // �զ����ͷ
        corrow: function () {
            var $this = this.$ele;
            var self = $this[0].previewmethods;
            var $dom = $("#lz-atlas-preview");
            var $corrows = $dom.find('.lz-thumbnail-box .lz-but');
            var $corrow = $dom.find('.lz-atlas-box .lz-but');
            var plugin = this.plugin;
            var param = this.$ele.data('lzpreview-param');
            // ��ͼ�զ�����ƽ�ͷ
            $corrow.off('click').on('click', function () {
                var $this = $(this);
                var flag;
                if ($this.hasclass('lz-nextbut')) {
                    plugin.slidertoolb.prev();
                }
                if ($this.hasclass('lz-previousbut')) {
                    plugin.slidertoolb.next();
                }
                var initindex = self._currentpointer();
                self._clslider(initindex);
                var index = initindex - 1;
                param.openzoom = false;
                self._zoombtn($(this), index);
                maxlen <= 10 && $corrows.eq(1).addclass('disabled');
                maxlen == 1 && $corrow.eq(1).addclass('disabled');
            });

            // ����ͼ�զ�����ƽ�ͷ
            $corrows.off('click').on('click', function () {
                var $this = $(this);
                if ($this.hasclass('lz-nextbut')) {
                    plugin.slidertools.prev();
                }
                if ($this.hasclass('lz-previousbut')) {
                    plugin.slidertools.next();
                }
                maxlen <= 10 && $corrows.eq(1).addclass('disabled');
                maxlen == 1 && $corrow.eq(1).addclass('disabled');
            });

            var maxlen = plugin.slidertoolb.$ele.find('li').length;

            // ͷβ��ͷ���ɵ��ч��
            plugin.slidertoolb.on('switch', function (data) {
                if (plugin.slidertoolb.index() == 1) {
                    $corrow.eq(0).addclass('disabled');
                } else {
                    $corrow.eq(0).removeclass('disabled');
                }
                if (plugin.slidertoolb.index() == maxlen) {
                    $corrow.eq(1).addclass('disabled');
                } else {
                    $corrow.eq(1).removeclass('disabled');
                }
            });

            plugin.slidertools.on('switch', function () {
                if (plugin.slidertools.index() == 1) {
                    $corrows.eq(0).addclass('disabled');
                } else {
                    $corrows.eq(0).removeclass('disabled');
                }
                !plugin.slidertools.islast() && $corrows.eq(1).removeclass('disabled');
            });
            plugin.slidertools.on('last', function () {
                $corrows.eq(1).addclass('disabled');
            });
        },
        pointer: function () {
            var $this = this.$ele;
            var self = $this[0].previewmethods;
            var $dom = $("#lz-atlas-preview");
            var plugin = this.plugin;
            var param = this.$ele.data('lzpreview-param');
            plugin.slidertools.$ele.find('li').on('click', function () {
                param.openzoom = false;
                self._currentchange($(this));
            });
        },

        // ����ͼƭ
        zoom: function () {
            var $this = this.$ele;
            var $dom = $("#lz-atlas-preview");
            var self = $this[0].previewmethods;
            var plugin = this.plugin;
            var param = this.$ele.data('lzpreview-param');
            $dom.find('.lz-see-change a').on('click', function () {
                param.openzoom = true;
                var index = plugin.slidertoolb.index() - 1;
                self._zoombtn($(this), index);
            });
        },

        // ��������
        wheel: function () {
            var $this = this.$ele;
            var flag = false;
            var param = this.$ele.data('lzpreview-param');
            var $imgbox = $dom.find('.lz-atlas-box');
            var $img = $dom.find('.lz-atlas-box .lz-inner-img a');
            var index = -1;
            var self = $this[0].previewmethods;
            var plugin = this.plugin;

            $img.on('mouseenter', function () {
                index = $(this).closest('li').index();
                flag = true;
            }).on('mouseleave', function () {
                flag = false;
            });
            $imgbox.on('mousewheel.lzpreview dommousescroll.lzpreview', function (e) {
                e = e || window.event;
                if (flag && param.openzoom) {
                    var $imgsizeadd = $dom.find('.lz-see-change-lg');
                    var $imgsizeminus = $dom.find('.lz-see-change-sm');
                    if (e.originalevent.wheeldelta) {
                        e.originalevent.wheeldelta < 0 ? self._zoombtn($imgsizeadd, index) : self._zoombtn($imgsizeminus, index);
                    } else if (e.originalevent.detail) {
                        e.originalevent.detail > 0 ? self._zoombtn($imgsizeadd, index) : self._zoombtn($imgsizeminus, index);
                    }
                } else if (flag && !param.openzoom) {
                    var initindex;
                    if (e.originalevent.wheeldelta) {
                        if (e.originalevent.wheeldelta > 0) {
                            plugin.slidertoolb.prev();
                            initindex = self._currentpointer();
                            self._clslider(initindex);
                        } else {
                            plugin.slidertoolb.next();
                            initindex = self._currentpointer();
                            self._clslider(initindex)
                        };
                    } else if (e.originalevent.detail) {
                        if (e.originalevent.detail < 0) {
                            plugin.slidertoolb.prev();
                            initindex = self._currentpointer();
                            self._clslider(initindex);
                        } else {
                            plugin.slidertoolb.next();
                            initindex = self._currentpointer();
                            self._clslider(initindex)
                        }
                    }
                }
                return false
            });
        },

        // �ƶ�ͼƭ
        move: function () {
            var $this = this.$ele;
            var $dom = $("#lz-atlas-preview");
            var $img = $dom.find('.lz-atlas-box img');
            var param = this.$ele.data('lzpreview-param');
            var self = $this[0].previewmethods;
            var plugin = this.plugin;
            $img.on('mousedown', function (e) {
                if (param.moveflag) {
                    param.canmove = true;
                    self._beginsite(e, $(this));
                } else {
                    param.canmove = false;
                }
            }).on('mousemove', function (e) {
                if (param.canmove) {
                    var indexs = plugin.slidertoolb.index() - 1;
                    var $currentimg = $img.eq(indexs);
                    self._movesite(e);
                    self._endsite(e);
                    $currentimg.css({
                        left: self.ende[0] + self.imgleft,
                        top: self.ende[1] + self.imgtop
                    });
                }
            });
            $img.closest('a').on('click', function () {
                if (param.moveflag) {
                    return false;
                }
            });
            $('body').on('mouseup', function () {
                param.canmove = false;
            });
        }
    }

    // ����
    var previewplugin = function (val, init) {
        this.$ele = $(val);
        this.param = this.$ele.data('lzpreview-param');
        this.init = init;
    }

    previewplugin.prototype = {
        constructor: previewplugin,
        _slider: function () {
            var $dom = $("#lz-atlas-preview");
            this.slidertoolb = $dom.find('.lz-atlas-box .lz-tempwrap').lzslider({
                cycle: false,//ѭ������
                auto: false,//�զ�����
                arrowstyle: false,//ĭ�ϼ�ͷ��ʽ
                event: ['touch'],//ĭ���¼�
                speed: 0,
                num: 1
            });

            this.slidertools = $dom.find('.lz-thumbnail-box .lz-tempwrap').lzslider({
                cycle: false,//ѭ������
                auto: false,//�զ�����
                arrowstyle: false,//ĭ�ϼ�ͷ��ʽ
                event: ['touch'],//ĭ���¼�
                speed: 200,
                num: 1
            });
        }
    }

    // ������
    var previewmethods = function (val) {
        this.$ele = $(val);
        this.param = this.$ele.data('lzpreview-param');
        this.flag = true;
    }

    previewmethods.prototype = {
        constructor: previewmethods,
        // ����ͼƭ����
        _setimglink: function () {
            var $dom = self.$dom = $('#lz-atlas-preview');
            var $bigimg = $dom.find('.lz-atlas-box .lz-inner-img-box li');
            var me = this;
            $bigimg.each(function (index, el) {
                $(el).children('a').attr({
                    'href': me.param.imglink[index],
                    'target': me.param.imgtarget[index]
                });
            });
        },
        // ������ʼ����ͼԤ��
        _calcsize: function () {
            var $dom = self.$dom = $('#lz-atlas-preview');
            var $bigimg = $dom.find('.lz-atlas-box .lz-inner-img-box li');
            var me = this;
            $dom.show();
            var windowwidth = $(window).width();
            var itemheight = $bigimg.parent().height();
            $bigimg.css({
                width: windowwidth,
                height: itemheight + 'px'
            });
            $dom.find('.lz-atlas-box .lz-but').css({
                height: itemheight,
                lineheight: itemheight + 'px',
                top: '34px'
            });
            !me.flag && $dom.hide();
            me.flag = true;
            $dom.find('.lz-img-bd').css('visibility', 'visible');
        },

        _clicklist: function ($this, plugin) {
            var $dom = self.$dom = $('#lz-atlas-preview'),
                indexs = 0,
                _me = this,
                $corrows = $dom.find('.lz-thumbnail-box .lz-but'),
                $corrow = $dom.find('.lz-atlas-box .lz-but'),
                pagenum = _me.$ele.find('.xn-pager .w-page-cm.active').attr('jp-data');
            if (!pagenum || pagenum === undefined) {
                $.islzfunction(_me.param.pagenum) && _me.param.pagenum()
            }
            //$this.index()�ڷ�ҳ�� ul�»�����һ��div ���ʸ�����ȡ�����ķ�ʽ ��ϊprevall
            indexs = _me.param.clickselect == '' ? $this.prevall('li').length : $this.closest(_me.param.itemselect).index();
            (isnan(pagenum) || !pagenum) && (pagenum = 1);
            var listindex = _me.param.pagesize * (pagenum - 1) + indexs + 1;
            $dom = $("#lz-atlas-preview");
            var maxlen = plugin.slidertoolb.$ele.find('li').length;

            this.plugin = plugin;
            plugin.slidertoolb.index(listindex);
            var currentindex = this._currentpointer();
            this._clslider(currentindex);
            $dom.fadein(150);
            this._zoombtn($(this), indexs);

            if (plugin.slidertoolb.index() == 1) {
                $corrow.eq(0).addclass('disabled');
            }
            if (plugin.slidertools.index() == 1) {
                $corrows.eq(0).addclass('disabled');
            }
            plugin.slidertoolb.islast() && $corrow.eq(1).addclass('disabled');
            plugin.slidertools.islast() && $corrows.eq(1).addclass('disabled');
            maxlen <= 10 && $corrows.eq(1).addclass('disabled');
            maxlen == 1 && $corrow.eq(1).addclass('disabled');
        },

        // �����
        _currentpointer: function () {
            var initindex = this.plugin.slidertoolb.index();
            this.plugin.slidertools.$ele.find('li').removeclass('lz-action').eq(initindex - 1).addclass('lz-action');
            return initindex
        },

        _currentchange: function ($this) {
            var indexs = $this.index();
            this.plugin.slidertools.$ele.find('li').removeclass('lz-action').eq(indexs).addclass('lz-action');
            this.plugin.slidertoolb.index(indexs + 1);
            this._zoombtn($(this), indexs);
        },

        // ����ͼ�������
        _clslider: function (initindex) {
            var indexs = this.plugin.slidertools.index();
            if (initindex <= indexs + 2) {
                this.plugin.slidertools.index(initindex - 3);//ǰ����
            }
            if (initindex >= indexs + 7) {
                this.plugin.slidertools.index(initindex - 6);//������
            }
        },

        _beginsite: function (event, $currentimg) {
            var me = this;
            var event = window.event || event;
            event.preventdefault ? event.preventdefault() : event.returnvalue = false;
            var scrollx = $(window).scrollleft(),
                scrolly = $(window).scrolltop();
            var x = event.pagex || event.clientx + scrollx,
                y = event.pagey || event.clienty + scrolly;
            me.begine = [x, y];
            me.imgtop = $currentimg.position().top;
            me.imgleft = $currentimg.position().left;
        },
        // ��ȡ�ƶ�ʱ��λ��
        _movesite: function (event) {
            var event = window.event || event;
            event.preventdefault ? event.preventdefault() : event.returnvalue = false;
            var scrollx = $(window).scrollleft(),
                scrolly = $(window).scrolltop();
            var x = event.pagex || event.clientx + scrollx,
                y = event.pagey || event.clienty + scrolly;
            this.movee = [x, y];
        },
        // ��ȡ�ƶ����λ��ֵ
        _endsite: function () {
            var me = this;
            me.ende = [me.movee[0] - me.begine[0], me.movee[1] - me.begine[1]];
        },

        // ����ŵ���с��ť
        _zoombtn: function ($this, index) {
            var param = this.$ele.data('lzpreview-param');
            var $dom = $("#lz-atlas-preview");
            var $numdom = $dom.find('.lz-see-change-txt');
            var $img = $dom.find('.lz-atlas-box img');
            var num = +$numdom.text().replace('%', '');
            var max = 500,//���ŵ����
                min = 5;//��с��с����
            var mleft = 0,
                mtop = 0,
                imgwid = 0,
                imghei = 0;
            var cssobj = {
                position: 'absolute',
                maxwidth: 'none',
                maxheight: 'none',
                left: '50%',
                top: '50%',
                zindex: 300
            }
            var resetcssobj = {
                position: '',
                width: '',
                height: '',
                maxwidth: '',
                maxheight: '',
                left: '',
                top: '',
                zindex: '',
                marginleft: '',
                margintop: ''
            }
            var $currentimg = $img.eq(index);
            $this.hasclass('lz-see-change-sm') ? num -= 5 : $this.hasclass('lz-see-change-lg') ? num += 5 : num = 100;
            !param.getimgflag && (this.initwidth = $currentimg.width());
            if (num >= min && num <= max) {
                $numdom.text(num + '%');
                if (num == 100) {
                    param.getimgflag = false;
                    param.moveflag = false;
                    $img.closest('a').css('cursor', 'pointer');
                    $currentimg.css(resetcssobj);
                } else {
                    imgwid = ~~(this.initwidth * (num / 100));
                    imghei = ~~$currentimg.height();
                    $currentimg.css('width', imgwid);
                    $currentimg.css(cssobj);
                    mleft = -imgwid / 2;
                    mtop = -imghei / 2;
                    $currentimg.css({
                        marginleft: mleft,
                        margintop: mtop
                    });
                    param.getimgflag = true;
                    if (num > 100) {
                        param.moveflag = true;
                        $img.closest('a').css('cursor', '')
                    } else {
                        param.moveflag = false;
                        $img.closest('a').css('cursor', 'pointer')
                    }

                }
            }
        },

        // ���с�ڿɹ������ʱ����
        _centerthumbnail: function () {
            var $thumbnail = $('#lz-atlas-preview .lz-thumbnail-box .lz-tempwrap .lz-inner-img-box');
            var thumbnailwidth = $thumbnail.width();
            if (thumbnailwidth < 670) {
                $thumbnail.parent().css('width', thumbnailwidth + 'px');
            }
        },

        // ��ʾ�����ؼ�ͷ
        _showswitch: function () {
            var param = this.param;

            if (!param.arrow) {
                $('#lz-atlas-preview').find('.lz-atlas-box .lz-img-but').hide();
                $('#lz-atlas-preview').find('.lz-atlas-box .lz-img-bd .lz-tempwrap ul:first-child li a').css('maxwidth', '90%')
            } else {
                $('#lz-atlas-preview').find('.lz-atlas-box .lz-img-but').show();
                $('#lz-atlas-preview').find('.lz-atlas-box .lz-img-bd .lz-tempwrap ul:first-child li a').css('maxwidth', '')
            }
        },

        // ��ʾ����������ͼ
        _showthumbnail: function () {
            var param = this.param;
            if (!param.thumbnail || !$.ispc()) {
                $('#lz-atlas-preview').find('.lz-thumbnail-box').hide();
                $('#lz-atlas-preview').find('.lz-atlas-box .lz-img-bd .lz-tempwrap ul:first-child').css('bottom', '34px');
                $('#lz-atlas-preview').find('.lz-see-change').css('bottom', '38px')

            } else {
                $('#lz-atlas-preview').find('.lz-thumbnail-box').show();
                $('#lz-atlas-preview').find('.lz-atlas-box .lz-img-bd .lz-tempwrap ul:first-child').css('bottom', '')
                $('#lz-atlas-preview').find('.lz-see-change').css('bottom', '')
            }
        }
    }

    var previewinit = function (val, a, b, c) {
        var me = this;
        me.$ele = $(val);
    };


    previewinit.prototype = {

        constructor: previewinit,

        defaults: {
            itemselect: '.w-atlas-ul li',
            clickselect: '',
            imgurl: [],
            csslink: 'control/css/atlas-preview.css',
            imgalt: [],
            imglink: [],
            imgtarget: [],
            pagesize: 1,
            length: 0,
            moveflag: false,
            initwidth: 0,
            getimgflag: false,
            canmove: false,
            openzoom: false,
            arrow: true,
            thumbnail: true,
            event: ['resize', 'close', 'corrow', 'pointer', 'zoom', 'move', 'wheel']
        },

        // ��ʼ������
        _initparam: function (a) {
            var param = this.defaults;
            if ($.islzobject(a)) {
                param = $.extend(true, {}, param, a);
            }
            param.imgurl = $.islzarray(param.imgurl) ? param.imgurl : ($.islzstring(param.imgurl) && param.imgurl != '') ? param.imgurl.split(' ') : [param.imgurl];
            param.tag = $.islzarray(param.imgalt) ? param.imgalt : ($.islzstring(param.imgalt) && param.imgalt != '') + [param.imgalt];
            param.length = param.imgurl.length;
            return param;
        },

        //��ʼ������
        _layout: function () {
            var me = this,
                $this = me.$ele,
                lzpreviewdom = '<div class="lz-atlas-preview" id="lz-atlas-preview">' +
                    '<a href="javascript:void(0);" class="lz-colsebut">' +
                    '<i class="lz-itemicon mw-iconfont">&#xa158;</i>' +
                    '</a>' +
                    '<div class="lz-display">' +
                    '<div class="lz-atlas-box">' +
                    '<div class="lz-see-change">' +
                    '<a href="javascript:;" class="lz-see-change-sm mw-iconfont">&#xa157;</a>' +
                    '<a href="javascript:;" class="lz-see-change-lg mw-iconfont">&#xa156;</a>' +
                    '<span class="lz-see-change-txt">100%</span>' +
                    '</div>' +
                    '</div>' +
                    '<div class="lz-thumbnail-box"></div>' +
                    '</div>' +
                    '</div>',
                lzpreviewinnerdom = '<div class="lz-img-bd">' +
                    '<div class="lz-img-but">' +
                    '<a href="javascript:void(0)" class="lz-nextbut lz-but"><i class="lz-itemicon mw-iconfont">&#xa134;</i></a>' +
                    '<a href="javascript:void(0)" class="lz-previousbut lz-but"><i class="lz-itemicon mw-iconfont">&#xa132;</i></a>' +
                    '</div>' +
                    '<div class="lz-tempwrap">' +
                    '<ul class="lz-inner-img-box">' +
                    '<li class="lz-inner-img">' +
                    '<a href="javascript:void(0)" target="_self">' +
                    '<div class="lz-reference"></div>' +
                    '<img class="lazyload lz-preview-img" src="" alt="">' +
                    '</a>' +
                    '</li>' +
                    '</ul>' +
                    '</div>' +
                    '</div>',
                param = $this.data('lzpreview-param');

            $('#lz-atlas-preview').remove();
            $('body').append(lzpreviewdom);

            var $dom = $('#lz-atlas-preview');
            $dom.find('.lz-atlas-box').append(lzpreviewinnerdom);
            $dom.find('.lz-thumbnail-box').append(lzpreviewinnerdom);

            var fragmeng = document.createdocumentfragment(),
                imgli = $dom.find('.lz-img-bd .lz-inner-img-box').html();
            for (var i = 0; i < param.length; i++) {
                fragmeng.appendchild($(imgli)[0]);
                $(fragmeng.childnodes[i]).find('.lz-preview-img').attr({
                    src: param.imgurl[i],
                    alt: param.imgalt[i]
                })
            }
            $dom.find('.lz-inner-img-box').html(fragmeng);
        },

        // ��ʼ���¼�
        _initevent: function (plugin) {
            var $this = this.$ele,
                event = new previewevent($this, this);
            event.setevent(plugin);
        },

        // ��ʼ������
        _initplugin: function () {
            var plugin = new previewplugin(this);
            plugin._slider();
            return plugin;
        },

        // ��ʼ����ʽ��
        _initloadcss: function () {
            var link = '<link id="lz-preview-css" href="' + this.param.csslink + '" rel="stylesheet">';
            $('#lz-preview-css').size() == 0 && $('head').append(link);
        },

        _initloadmeta: function () {
            // var mate = '<meta class="lz-preview-meta" content="yes" name="apple-mobile-web-app-capable">'+
            // 			'<meta class="lz-preview-meta" content="black" name="apple-mobile-web-app-status-bar-style">'+
            // 			'<meta class="lz-preview-meta" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" name="viewport">'
            // 	$('head').prepend(mate);
        },

        _init: function (a) {
            var me = this,
                self = this.$ele.get(0),
                $this = me.$ele;
            me.$ele.data('lzpreview-param', this._initparam(a));
            me.param = this.$ele.data('lzpreview-param');
            self.previewmethods = new previewmethods(self);
            self = $this[0].previewmethods;
            var $listclick = '';
            me._initloadcss();
            if ($.islzobject(me.param.itemselect)) {
                $listclick = me.param.itemselect
            } else {
                $listclick = me.param.clickselect == '' ? $this.find(me.param.itemselect) : $this.find(me.param.clickselect);
            }
            $listclick.off('click.lzpreview').on('click.lzpreview', function () {
                me._initloadmeta();
                var $this = $(this);
                me._layout();
                self._showswitch();
                self._showthumbnail();
                self._setimglink();
                self._calcsize();
                var plugin = me._initplugin();
                self._clicklist($this, plugin);
                self._centerthumbnail();
                me._initevent(plugin);
            });
        }
    }

    var tool = function (val) {
        var me = this;
        me.$ele = $(val);
        me.param = this.$ele.data('lzpreview-param');

        me.previewmethods = this.$ele[0].previewmethods;
        me.flag = true;
    };

    tool.prototype = {
        constructor: previewinit,

        seturl: function (url) {
            this.param.imgurl = $.islzarray(url) ? url : ($.islzstring(url) && url != '') ? url.split() : '';
        },

        arrowswitch: function (option) {

            $.islzbool(option) && (this.previewmethods.param.arrow = option);
        },

        thumbnailswitch: function (option) {
            $.islzbool(option) && (this.previewmethods.param.thumbnail = option);
        }
    }

    // ������
    $.fn.lzpreview = function (option, status) {
        return $.each(this, function (index, val) {
            if (!$(val).data('lzpreview-stamp')) {

                var newpreview = $(val).data('lzpreview');

                if (!newpreview) {

                    $.islzobject(option) && (status = option);

                    newpreview = new previewinit(val, option, status)

                    $(val).data('lzparallax', newpreview);

                }

                if ($.islzobject(option)) {

                    newpreview._init(option);

                } else if ($.islzstring(option)) {

                    var inittool = $(val).data('lzparallaxtool');

                    if (!inittool) {
                        inittool = new tool(val);
                        $(val).data('lzparallax', inittool);
                    }

                    !!inittool[option] && inittool[option](status);
                }
            }
        });
    }
});