function OnMouseOverTasto(el, ancor) {
 el.style.background='#FCF3AD'; 
 el.style.color='#006534'; 
 ancor.style.color='#006534';
}

function OnMouseOutTasto(el, ancor) {
 el.style.background='#EBF4E5'; 
 el.style.color='#AF0202'; 
 ancor.style.color='#AF0202';
}