标签：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>js</title> <script src="http://code.jquery.com/jquery-latest.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function () { $(window).scroll(function () { var a = document.getElementById("eq").offsetTop; if (a >= $(window).scrollTop() && a < ($(window).scrollTop()+$(window).height())) { alert("div在可视范围"); } }); }); </script> </head> <body> <div style="width:1px;height:2000px;"></div> <div id="eq" style=" width:100px; height:100px; background-color:Red;">1</div> <div style="width:1px;height:2000px;"></div> </body> </html>
标签：
原文地址：http://www.cnblogs.com/codinganytime/p/5193480.html
