test
/
jquery_scroll.htm

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>测试页面滚动到底部 页面自动加载功能</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js" type="text/javascript"></script>
   <script type="text/javascript">
                function insertcode() {
                    var $body = $("body");
                    $body.append('<div style=\" height:1000px; font-size:24px;\">新增项目</div>')
                    $("#page_tag_load").hide();
                }
                $(document).ready(function () {

                    $(window).scroll(function () {
                        var $body = $("body");
                        var $html = "<h7>测试页面滚动到底部 页面自动加载功能</h7>";
                        $html += "<br/>" + ($(window).height() + $(window).scrollTop());
                        $html += "<br/>window.height: " + $(window).height();
                        $html += "<br/>body.height: " + $body.height();
                        $html += "<br/>window.scrollTop: " + $(window).scrollTop();
                        $("#page_tag_bottom").html($html);

                  /*判断窗体高度与竖向滚动位移大小相加 是否 超过内容页高度*/
                        if (($(window).height() + $(window).scrollTop()) >= $body.height()) {
                            $("#page_tag_load").show();
                            //setTimeout(insertcode, 1000);/*IE 不支持*/
                            insertcode();
                        }
                    });
                });
    </script>
</head>
<body>
	<div id="page_tag_bottom" style=" width:100%; position:fixed; top:0px; background-color:#cccccc;height:100px;"> </div>
    <div style=" height:1000px; font-size:24px;">新增项目</div>
    <div id="page_tag_load" style=" display:none; font-size:14px;position:fixed; bottom:0px; background-color:#cccccc;height:50px;">加载中...</div>
</body>
</html>