$(document).ready(function() {
    $("#m4").attr("src",$("#m4").attr("src").replace("1","0"));
    $(".mm").mouseover(function() {
        $("#"+this.id).attr("src",$("#"+this.id).attr("src").replace("1","0"));
    });
    $(".mm").mouseout(function() {
        $("#"+this.id).attr("src",$("#"+this.id).attr("src").replace("0","1"));
        $("#m4").attr("src",$("#m4").attr("src").replace("1","0"));
    });

    });