标签:
<!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head>    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />    <title>让IE低版本浏览器也支持placeholder属性</title>    <script type="text/javascript"  src="http://ajax.microsoft.com/ajax/jquery/jquery-1.11.1.min.js"></script>    <script type="text/javascript">        $(function () {            if (/MSIE\s(\d+)/.test(navigator.userAgent) && navigator.userAgent.match(/MSIE\s(\d+)/)[1] < 10) {                $(‘[placeholder]‘).each(function () {                    var pla = $(this).attr(‘placeholder‘);                    $(this).focus(function () {                        if ($(this).val() == pla) {                            $(this).val(‘‘);                        }                    }).blur(function () {                        if ($(this).val() == ‘‘) {                            $(this).val(pla);                        }                    });                    $(this).trigger(‘blur‘);//此处利用blur事件,为了业务需求。防止页面上查询后,文本框需要保留搜索的关键被placeholder代替                });            }        });    </script></head><body>    <input type="text" placeholder="请输入关键字" /></body></html>标签:
原文地址:http://www.cnblogs.com/liaohaihui/p/4177868.html