function OnMouseOverTasto(el, ancor) {
 el.style.background='#9C4142'; 
 el.style.color='#FFE79C'; 
 ancor.style.color='#FFE79C';
}

function OnMouseOutTasto(el, ancor) {
 el.style.background='#D47E7F'; 
 el.style.color='#FFE79C'; 
 ancor.style.color='#FFE79C';
}