php+jquery 上拉加载

<script type="text/javascript">
var resflow = true,pages =2;
var ps=$("#ids").text();
order_code=$("#order_code").html();
$(function(){
/*滚动条追加数据*/
$(window).bind('scroll',function(){
requirementH = 0,docH = 0;
requirementH = ($(window).innerHeight() - 49) + $(window).scrollTop();
docH = ($('.menuOfListRight ul li').size()) * ($('.menuOfListRight ul li').height()+5);
// console.log('requirementH='+requirementH);
// console.log('docH=='+docH);
// console.log('scrolltop=='+$(window).scrollTop());
if( docH<requirementH){
if(pages <=ps){
console.log(pages);
getDate();
$('.menuLoad').show();
} else{
$('.menuLoad').hide();
}
console.log('ssssssss');
}
});
});
/*ajax获取数据**/
function getDate(){
if(resflow){
resflow = false;
if(pages <= ps){
str = '';
$.ajax({
type: "POST",
url: ".././../up_load",
data:{page:pages,id:order_code},
success: function(data) {
for (var i = 0; i < data.length; i++) {
str += '<li style="margin-bottom: 0.54444rem" >' +
'<div class="dkjl-li">' +
'<div class="dkjl-tit fl ddhao">订单号:'+data[i].virtual_code+'</div>' +
'<div class="dkjl-con fr"><span>'+data[i].add_time+'</span></div>' +
'</div>' +
'<div class="dkjl-li">';
if(data[i].zhuangxiu==null) {
str+= '<div class="dkjl-tit fl ddhao">暂无数据 </div>' +
'<div class="dkjl-con fr"><span class="dkjl-red">￥' + data[i].jiaofei + '</></div>' +
'</div>' +
'<div class="dkjl-li">'
}else{
str+= '<div class="dkjl-tit fl ddhao">'+data[i].zhuangxiu.company+' </div>' +
'<div class="dkjl-con fr"><span class="dkjl-red">￥' + data[i].jiaofei + '</></div>' +
'</div>' +
'<div class="dkjl-li">'
}

<!--- 业务逻辑
if(data[i].status==0){
str+='<div class="dkjl-tit fl dkwc" >1111</div>'+
'</div>'+
'</li>'
}else if(data[i].status==1) {
str+='<div class="dkjl-tit fl dkwc" ></div>'+
'</div>'+
'</li>'

--->
}else{
str += '<div class="dkjl-tit fl dkwc">33333</div>' +
'<div class="dkjl-con fr"><a class="js-moneypz" data='+data[i].cert_img+'>2222</a></div>' +
'<div class="dkpzheng"><img src=' + data[i].cert_img + ' width="100%"></div>' +
'</div>' +
'</li>'
}
}
$('.menuOfListRight ul').after(str);
}
});
pages ++ ;
resflow = true;
}
}
}
</script>