$(function(){
        // page
        var page = 1;
        var ajaxUrl = document.URL;
        if (ajaxUrl.indexOf("?") != -1) {
            ajaxUrl = ajaxUrl + '&page=';
        } else {
            ajaxUrl = ajaxUrl + '?page=';
        }
        ll = new LazyLoad(
            {threshold: 200,},
            document.querySelectorAll("img"),
        );
        // dropload
        $('.content').dropload({
            scrollArea : window,
            loadDownFn : function(me){
                page++;
                var result = '';
                $.ajax({
                    type: 'GET',
                    url:ajaxUrl+page,
                    dataType: 'json',
                    success: function(data){
                        var arrLen = data.html.length;
                        if(arrLen > 0){
                            result = data.html;
                        }else{
                            me.lock();
                            me.noData();
                        }
                        $('.lists').append(result);
                        me.resetload();
                        ll.update();
                    },
                    error: function(){
                        me.noData();
                        me.resetload();
                    }
                });
            },
            threshold : 500
        });
    });