asp.net网站开发中用jquery实现滚动浏览器滚动条加载数据(类似于腾讯微博)

// - -!,你懂的.
var count=<%=allcount %>;
var times=0;
var loaded = true;
function Add_Data()
{
var top = $("#main_left_add").offset().top;
if(loaded && ($(window).scrollTop() + $(window).height() > top))
{
$("#main_left_add").html("数据加载中...");
times++;
$.ajax(
{
type: "POST",
dataType: "text",
url: "weibo.ashx",
data: "userid="+<%=hf.Value %>+"&touserid="+<%=hf1.Value %>+"&count="+count+"×="+times+"&type=1",
success: function(data)
{
//alert("第"+times+"次追加数据.");
if(data == "没有数据")
{
$("#main_left_add").css("display","none");
loaded=false;
AddEffect();
}
else if(data == "")
{
$("#main_left_add").html("点击加载更多...");
$("#main_left_add").css("display","block");
loaded=false;
AddEffect();
}
else if(data != "")
{
$("#main_left_down").append(data);
AddEffect();
}
}
}
);
}
}
$(window).scroll(Add_Data);
//点击追加数据
$("#main_left_add").click(function(){
$.ajax({
type: "POST",
dataType: "text",
url: "weibo.ashx",
data:"userid="+<%=hf.Value %>+"&touserid="+<%=hf1.Value %>+"&count="+count+"×="+times+"&type=2",
success: function(data){
if(data=="没有数据")
{
$("#main_left_add").css("display","none");
AddEffect();
}
else
{
$("#main_left_down").append(data);
$("#main_left_add").html("点击加载更多...");
AddEffect();
}
}
});
//鼠标移动效果
$("#main_left_add").mouseover(function(){
$(this).css("background-color","#e4eef8");
});
$("#main_left_add").mouseout(function(){
$(this).css("background-color","#f0f5f8");
});