function function1() {
        document.all.a1.checked = true;
    }
function function2() {
        document.all.a2.checked = true;
    }
function function3() {
        document.all.a3.checked = true;
    }
function function4() {
        document.all.a4.checked = true;
    }
function function5() {
        document.all.a5.checked = true;
    }
function function6() {
        document.all.a6.checked = true;
    }
function function7() {
        document.all.a7.checked = true;
    }
function function8() {
        document.all.a8.checked = true;
    }
function function9() {
        document.all.a9.checked = true;
    }
function function10() {
        document.all.a10.checked = true;
    }
function function11() {
        document.all.a11.checked = true;
    }
function function12() {
        document.all.a12.checked = true;
    }
function function13() {
        document.all.a13.checked = true;
    }
function function14() {
        document.all.a14.checked = true;
    }
function function15() {
        document.all.a15.checked = true;
    }
function function16() {
        document.all.a16.checked = true;
    }
function function17() {
        document.all.a17.checked = true;
    }
function function18() {
        document.all.a18.checked = true;
    }

function funct1() {
document.getElementById('a1').checked = true;
    }
function funct2() {
document.getElementById('a2').checked = true;
    }
function funct3() {
document.getElementById('a3').checked = true;
    }
function funct4() {
document.getElementById('a4').checked = true;
    }
function funct5() {
document.getElementById('a5').checked = true;
    }
function funct6() {
document.getElementById('a6').checked = true;
    }
function funct7() {
document.getElementById('a7').checked = true;
    }
function funct8() {
document.getElementById('a8').checked = true;
    }
function funct9() {
document.getElementById('a9').checked = true;
    }
function funct10() {
document.getElementById('a10').checked = true;
    }
function funct11() {
document.getElementById('a11').checked = true;
    }
function funct12() {
document.getElementById('a12').checked = true;
    }
function funct13() {
document.getElementById('a13').checked = true;
    }
function funct14() {
document.getElementById('a14').checked = true;
    }
function funct15() {
document.getElementById('a15').checked = true;
    }
function funct16() {
document.getElementById('a16').checked = true;
    }
function funct17() {
document.getElementById('a17').checked = true;
    }
function funct18() {
document.getElementById('a18').checked = true;
    }
function funct19() {
document.getElementById('a19').checked = true;
    }