国家公祭日网站变灰(原创)

<script>
var date = {
          
   
    thisDate: function (beginDateStr, endDateStr) {
          
   
        var curDate = new Date(),
            beginDate = new Date(beginDateStr),
            endDate = new Date(endDateStr);
        if (curDate >= beginDate && curDate <= endDate) {
          
   
           document.write("<style>html {filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);-webkit-filter: grayscale(100%);}</style>");
        }
		else{
          
   
           alert("禁止使用360浏览器访问！");
		}
    }
}
date.thisDate(2020/12/13, 2020/12/14);
</script>

php站点可以将下列代码放入渲染页面index.php或者将上面代码放入开发者自定义javascript部分(去掉上述代码的)

<?php
<script>
var date = {
          
   
    thisDate: function (beginDateStr, endDateStr) {
          
   
        var curDate = new Date(),
            beginDate = new Date(beginDateStr),
            endDate = new Date(endDateStr);
        if (curDate >= beginDate && curDate <= endDate) {
          
   
           document.write("<style>html {filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);-webkit-filter: grayscale(100%);}</style>");
        }
		else{
          
   
           alert("禁止使用360浏览器访问！");
		}
    }
}
date.thisDate(2020/12/13, 2020/12/14);
</script>
?>