$(document).ready( function(){

$contentLoadTriggered = false;

$("#mainDiv").scroll(function(){

if($("#mainDiv").scrollTop() >= ($("#wrapperDiv").height() -

   $("#mainDiv").height()) &&   $contentLoadTriggered == false)

   $contentLoadTriggered == false)

{

$contentLoadTriggered = true;

$.ajax({

type: "POST",

url: "LoadOnScroll.aspx/GetDataFromServer",

data: "{}",

contentType: "application/json; charset=utf-8",

dataType: "json",

async: true,

cache: false,

success: function (msg) {

$("#wrapperDiv").append(msg.d);

$contentLoadTriggered = false;

},

error: function (x, e){

alert("The call to the server side failed. " +

x.responseText);

}

}

);

}

}

);

}

);

var range = 50;             //距下边界长度/单位px

    var totalheight = 0;

    var num ={$data|count};

    var is_load =true;

    var main = $("#con");                     //主体元素

    $(window).scroll(function(){

        var srollPos = $(window).scrollTop();    //滚动条距顶部距离(页面超出窗口的高度)

        totalheight = parseFloat($(window).height()) + parseFloat(srollPos);

        if(($(document).height()-range) <= totalheight && is_load == true) {

            if(num < 5 ){

                return false;

            }

            is_load = false;

            $("#loading").show();

            //alert("0000");

             $.ajax({

                 url : '{:u("Index/post_json")}',

                 type : 'post',

                 data : {"num":num,"sch_time":sch_time,"city_from":city_from,"city_dst":city_dst},

                 dataType : 'json',

                 success : function(msg) {

                     //alert(msg);

                     $("#loading").hide();

                     myobj=eval(msg); 

                     if(num == myobj['nums']){

                         alert("已经没有新订单了");

                         is_load = false;    //停止加载

                         return false;

                     }else{

                         num=myobj['nums'];

                     }

                     myobjs=myobj['data'];

                     for(var i=0;i<myobjs.length;i++){

                         ht='<div class="trip_li">';

                         ht+='<img class="hot" src="__ROOT__/Public/images/icon_hot.png">';

                         if(myobjs[i]['fleet'].join_uf == 1){

                             ht+='<img class="uf" src="__ROOT__/Public/images/icon_uf.png">';

                         }

                         ht+='<button type="button" class="bespoke" onclick=javascript:window.location.href="'+"{:u('Index/order')}"+'/scid/'+myobjs[i].id+'">立即预约</button>';

                         ht+='<dl>';

                         ht+='<dt><font>'+myobjs[i].from_city+'</font>　<img  src="__ROOT__/Public/images/icon_go.png" />　<font>'+myobjs[i].dst_city+'</font></dt>';

                         ht+='<dd>发车时间：<i class="times">'+myobjs[i].sch_time+'</i></dd>';

                         ht+='<dd>车型：'+myobjs[i]['fleet'].best_car+'</dd>';

                         ht+='<dd><i class="red">￥'+myobjs[i].money+'</i>    <i class="red">空位数: '+myobjs[i].used+'/'+myobjs[i].seat+'</i> </dd>';

                         ht+='</dl>';

                         ht+='</div>';

                         //alert(ht);

                          main.append(ht);

                     }

                     is_load =true; //恢复加载功能

                 }

             });

        }

    });