var stat = false;
function dpl() {
    if (stat)   document.getElementById('xyz').style.display="none";
    else        document.getElementById('xyz').style.display="";
    stat =  stat? false : true;
}
function dpl2() {
    if (stat)   document.getElementById('xyz2').style.display="none";
    else        document.getElementById('xyz2').style.display="";
    stat =  stat? false : true;
}
function dpl3() {
    if (stat)   document.getElementById('xyz3').style.display="none";
    else        document.getElementById('xyz3').style.display="";
    stat =  stat? false : true;
}
function dpl4() {
    if (stat)   document.getElementById('xyz4').style.display="none";
    else        document.getElementById('xyz4').style.display="";
    stat =  stat? false : true;
}
function dpl5() {
    if (stat)   document.getElementById('xyz5').style.display="none";
    else        document.getElementById('xyz5').style.display="";
    stat =  stat? false : true;
}
function dpl6() {
    if (stat)   document.getElementById('xyz6').style.display="none";
    else        document.getElementById('xyz6').style.display="";
    stat =  stat? false : true;
}
function dpl7() {
    if (stat)   document.getElementById('xyz7').style.display="none";
    else        document.getElementById('xyz7').style.display="";
    stat =  stat? false : true;
}
function dpl8() {
    if (stat)   document.getElementById('xyz8').style.display="none";
    else        document.getElementById('xyz8').style.display="";
    stat =  stat? false : true;
}
function dpl9() {
    if (stat)   document.getElementById('xyz9').style.display="none";
    else        document.getElementById('xyz9').style.display="";
    stat =  stat? false : true;
}
function dpl10() {
    if (stat)   document.getElementById('xyz10').style.display="none";
    else        document.getElementById('xyz10').style.display="";
    stat =  stat? false : true;
}
function dpl11() {
    if (stat)   document.getElementById('xyz11').style.display="none";
    else        document.getElementById('xyz11').style.display="";
    stat =  stat? false : true;
}
function dpl12() {
    if (stat)   document.getElementById('xyz12').style.display="none";
    else        document.getElementById('xyz12').style.display="";
    stat =  stat? false : true;
}
function dpl13() {
    if (stat)   document.getElementById('xyz13').style.display="none";
    else        document.getElementById('xyz13').style.display="";
    stat =  stat? false : true;
}
function dpl14() {
    if (stat)   document.getElementById('xyz14').style.display="none";
    else        document.getElementById('xyz14').style.display="";
    stat =  stat? false : true;
}
function dpl15() {
    if (stat)   document.getElementById('xyz15').style.display="none";
    else        document.getElementById('xyz15').style.display="";
    stat =  stat? false : true;
}
function dpl16() {
    if (stat)   document.getElementById('xyz16').style.display="none";
    else        document.getElementById('xyz16').style.display="";
    stat =  stat? false : true;
}
function dpl17() {
    if (stat)   document.getElementById('xyz17').style.display="none";
    else        document.getElementById('xyz17').style.display="";
    stat =  stat? false : true;
}
function dpl18() {
    if (stat)   document.getElementById('xyz18').style.display="none";
    else        document.getElementById('xyz18').style.display="";
    stat =  stat? false : true;
}
function dpl19() {
    if (stat)   document.getElementById('xyz19').style.display="none";
    else        document.getElementById('xyz19').style.display="";
    stat =  stat? false : true;
}
function dpl20() {
    if (stat)   document.getElementById('xyz20').style.display="none";
    else        document.getElementById('xyz20').style.display="";
    stat =  stat? false : true;
}