var hasNext=true;//触发开关，防止多次调用事件

        var nScrollHight = 0; //滚动距离总长(注意不是滚动条的长度)

        var nScrollTop = 0;   //滚动到的当前位置

        var nDivHight = $('#main').height();

        $('#main').scroll(function(){

            nScrollHight = $(this)[0].scrollHeight;

            nScrollTop = $(this)[0].scrollTop;

            var paddingBottom = parseInt( $(this).css('padding-bottom') ),paddingTop = parseInt( $(this).css('padding-top') );

            if(nScrollTop + paddingBottom + paddingTop + nDivHight + 100 >= nScrollHight && hasNext==true){

                hasNext = false;

                $.ajax({

                    url:'/blog/'+page++,

                    data:'',

                    type:'post',

                    dataType:'text',

                    success:function(result){

                        if(result.code){

                            $('#article-list').append(result);

                            hasNext = true;

                        }else{

                            hasNext = false;

                            $('#article-list').append('<div class="alert with-icon"><i class="icon-info-sign"></i><h3 class="content">'+ result.message +'</h3></div>');

                        }

                    }

                })

            }

        });