手机页面滚动到底部刷新数据

//滚动到底部加载数据
$(window).scroll(function () {
var scrollTop = $(this).scrollTop();
var elementHeight = $(this).height();
var h1 = scrollTop + elementHeight;
var scrollHeight = document.documentElement.scrollHeight;
//var documentHeight = $(document).height();
if (h1 >= scrollHeight) {
var pageIndex = $("#hidPageIndex").val();
AppendNews(pageIndex);   //加载新数据
}
});

document.documentElement.scrollHeight 等效于  $(document).height()