function  run(n){

if(n=="m1"){
document.getElementById("m1").style.display="block";
document.getElementById("m2").style.display="none";
document.getElementById("s1").className="m1";
document.getElementById("s2").className="m2";
}
if(n=="m2"){
document.getElementById("m2").style.display="block";
document.getElementById("m1").style.display="none";
document.getElementById("s2").className="m1";
document.getElementById("s1").className="m2";
}
if(n=="m3"){
document.getElementById("m3").style.display="block";
document.getElementById("m4").style.display="none";
document.getElementById("s3").className="m1";
document.getElementById("s4").className="m2";
}
if(n=="m4"){
document.getElementById("m4").style.display="block";
document.getElementById("m3").style.display="none";
document.getElementById("s4").className="m1";
document.getElementById("s3").className="m2";
}
if(n=="m5"){
document.getElementById("m5").style.display="block";
document.getElementById("m6").style.display="none";
document.getElementById("s5").className="m1";
document.getElementById("s6").className="m2";
}
if(n=="m6"){
document.getElementById("m6").style.display="block";
document.getElementById("m5").style.display="none";
document.getElementById("s6").className="m1";
document.getElementById("s5").className="m2";
}
}