function f1(){
document.getElementById('m1l').style.display="block";
document.getElementById('m1r').style.display="block";
}
function f2(){
document.getElementById('m1l').style.display="none";
document.getElementById('m1r').style.display="none";
}

function s1(){
document.getElementById('m2l').style.display="block";
document.getElementById('m2r').style.display="block";
document.getElementById('ser_drop').style.display="block";
}
function s2(){
document.getElementById('m2l').style.display="none";
document.getElementById('m2r').style.display="none";
document.getElementById('ser_drop').style.display="none";
}
function s3(){
document.getElementById('m2l').style.display="block";
document.getElementById('m2r').style.display="block";
document.getElementById('ser_drop').style.display="none";
}

function ser_drop1(){
document.getElementById('m2l').style.display="none";
document.getElementById('m2r').style.display="none";
document.getElementById('ser_drop').style.display="block";
}
function ser_drop2(){
document.getElementById('m2l').style.display="none";
document.getElementById('m2r').style.display="none";
document.getElementById('ser_drop').style.display="none";
}


function t1(){
document.getElementById('m3l').style.display="block";
document.getElementById('m3r').style.display="block";
}
function t2(){
document.getElementById('m3l').style.display="none";
document.getElementById('m3r').style.display="none";
}

function fr1(){
document.getElementById('m4l').style.display="block";
document.getElementById('m4r').style.display="block";
}
function fr2(){
document.getElementById('m4l').style.display="none";
document.getElementById('m4r').style.display="none";
}

function fif1(){
document.getElementById('m5l').style.display="block";
document.getElementById('m5r').style.display="block";
}
function fif2(){
document.getElementById('m5l').style.display="none";
document.getElementById('m5r').style.display="none";
}

function sx1(){
document.getElementById('m6l').style.display="block";
document.getElementById('m6r').style.display="block";
}
function sx2(){
document.getElementById('m6l').style.display="none";
document.getElementById('m6r').style.display="none";
}

function pro_view1(){
document.getElementById('pro_view').style.display="block";
}
function pro_view2(){
document.getElementById('pro_view').style.display="none";
}