Kanasansoft Web Lab.

(
    function(){
        var e = document.getElementById("sine");
        var d = {
            "０":"0",
            "１":"1",
            "２":"2",
            "３":"3",
            "４":"4",
            "５":"5",
            "６":"6",
            "７":"7",
            "８":"8",
            "９":"9"
        };
        setInterval(
            function(){
                e.innerHTML=e.innerHTML.replace(
                        /[０-９]/g,
                    function(a){
                        return (Math.random()<0.05)?d[a]:a;
                    }
                );
            },
            100
        );
    }
)();