全站灰色JS代码-指定某些日期变灰

$(function() {

    var myDate = new Date;

    var mon = myDate.getMonth() + 1; 

    var date = myDate.getDate(); 

    var days=['4.4','5.12','7.7','9.18','12.13']; //指定日期

    for (var day of days) {

        var d=day.split('.');

        if (mon == d[0] && date == d[1]) {

            var gray='grayscale(100%)';

            $("html,body").css({"filter":'gray !important;',"filter":"progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)","filter":gray,"-webkit-filter":gray,'-moz-filter':gray,'-ms-filter':gray,'-o-filter':gray});

            break;

        }

    }

});

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