function OnMouseOverTasto(el, ancor) {
 el.style.background='#F7DB08'; 
 el.style.color='#082442'; 
 ancor.style.color='#082442';
}

function OnMouseOutTasto(el, ancor) {
 el.style.background='#CBEBEB'; 
 el.style.color='#31619C'; 
 ancor.style.color='#30619E';
}