jQuery 检测滚动条到达底部

[javascript]代码库

$(document).ready(function() {
    $("#scroll_div").scroll(function(){
        var divHeight = $(this).height();
        var nScrollHeight = $(this)[0].scrollHeight;
        var nScrollTop = $(this)[0].scrollTop;
        $("#input1").val(nScrollHeight);
        $("#input2").val(nScrollTop);
        $("#input3").val(divHeight);
        if(nScrollTop + divHeight >= nScrollHeight) {
            alert("到达底部了");
        }
    });
});