function show( id ) {
var isShown = false;
for(var i = 1; i < 100; i++){
var ref = String(i);
if(i < 10){
ref = '0'+i;
}
if(document.getElementById('q'+ref)){
if('q'+ref == id && document.getElementById('q'+ref).style.display == 'block'){
isShown = true;
}
document.getElementById('q'+ref).style.display = 'none';
} else {
break;
}
}
if(!isShown){
document.getElementById(id).style.display = 'block';
}
}