function displayBlock(id) {
    eval("document.getElementById('mi_" + id + "')").style.display = 'block';
    eval("document.getElementById('mi1_" + id + "')").style.display = 'none';
}

function displayNone(id) {
    eval("document.getElementById('mi_" + id + "')").style.display = 'none';
    eval("document.getElementById('mi1_" + id + "')").style.display = 'block';
}

function displayBlock1(id) {
    document.getElementById(id).style.display = 'block';
    
}

function displayNone1(id) {
    document.getElementById(id).style.display = 'none';
}