// for onload event )
function hideLoadingSinger() { 
document.getElementById('divLoadingSinger').style.display="none"; 
document.getElementById('_singer').style.display="block"; 
} 

// for onclick event )
function showLoadingSinger() { 
document.getElementById('divLoadingSinger').style.display="inline"; 
document.getElementById('_singer').style.display="none"; 
}