jquery 滚动条事件简单实例

复制代码 代码如下:

  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

  <html xmlns="http://www.w3.org/1999/xhtml">

  <head>

  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

  <title>无标题文档</title>

  <script type="text/javascript" src="jquery-1.6.2.js"></script>

  <script type="text/javascript">

  $(function(){

  var lazyheight = 0;

  //获取数据

  function showload(){

  lazyheight = parseFloat($(window).height()) + parseFloat($(window).scrollTop());

  if ($(document).height()-100 <= lazyheight) {

  alert("xxx");

  }

  }

  //showload();

  //绑定事件

  $(window).bind("scroll", function(){

  //当滚动条滚动时

  showload();

  });

  })

  </script>

  </head>

  <body>

  <img src="82938048_46374805.jpg"/>

  <img src="82938048_46374805.jpg"/>

  <img src="82938048_46374805.jpg"/>

  </body>

  </html>