function checkB() {
        if (document.searchf.elements["bunall"].checked == true){
                for (i=1; i<11; i++) document.searchf.elements["bun"+i].checked = true;
        }else{
                for (i=1; i<11; i++) document.searchf.elements["bun"+i].checked = false;
        }
}
function checkB2() {
        if (document.searchf.elements["kouall"].checked == true){
                for (i=1; i<15; i++) document.searchf.elements["kou"+i].checked = true;
                document.searchf.elements["kou16"].checked = true;
        }else{
                for (i=1; i<15; i++) document.searchf.elements["kou"+i].checked = false;
                document.searchf.elements["kou16"].checked = false;
        }
}
function checkboshu() {
        document.searchf.elements["year2s"].disabled =true;
        document.searchf.elements["year2e"].disabled =true;
        document.searchf.elements["year3s"].disabled =true;
        document.searchf.elements["year3e"].disabled =true;
        document.searchf.jissif[0].disabled =true;
        document.searchf.jissif[1].disabled =true;
        document.searchf.elements["year1"].disabled =false;
}
function checkjissi() {
        document.searchf.elements["year2s"].disabled =false;
        document.searchf.elements["year2e"].disabled =false;
        document.searchf.elements["year3s"].disabled =false;
        document.searchf.elements["year3e"].disabled =false;
        document.searchf.elements["jissif"].disabled =false;
        document.searchf.jissif[0].disabled =false;
        document.searchf.jissif[1].disabled =false;
        document.searchf.elements["year1"].disabled =true;
}
function checkjold() {
        document.searchf.elements["year2s"].disabled =false;
        document.searchf.elements["year2e"].disabled =false;
        document.searchf.elements["year3s"].disabled =true;
        document.searchf.elements["year3e"].disabled =true;
        document.searchf.elements["jissif"].disabled =false;
        document.searchf.jissif[0].disabled =false;
        document.searchf.jissif[1].disabled =false;
        document.searchf.elements["year1"].disabled =true;
}
function checkjnew() {
        document.searchf.elements["year2s"].disabled =true;
        document.searchf.elements["year2e"].disabled =true;
        document.searchf.elements["year3s"].disabled =false;
        document.searchf.elements["year3e"].disabled =false;
        document.searchf.elements["jissif"].disabled =false;
        document.searchf.jissif[0].disabled =false;
        document.searchf.jissif[1].disabled =false;

        document.searchf.elements["year1"].disabled =true;
}

var mode;
function viewSw(i) {
        document.all["menu"+i].style.display="block";
}

function hideSw(i) {
        mode = document.all["menu"+i].style.display;
        if(mode != "block"){
          document.all["menu"+i].style.display="block";
        }else{
          document.all["menu"+i].style.display="none";
        }
}