function att()
{
    var c = parseFloat (document.form1.capitale.value);
    var i = parseFloat (document.form1.tasso.value);
    var t = parseFloat (document.form1.tempo.value);
    var j = parseInt (document.form1.met.value);
    var h = parseInt (document.form1.mod.value);

        if (h==1) b=1
  else if (h==2) b=12
  else if (h==3) b=365

var vs=c/(1+((i/(100*b))*t))
var vc=c/Math.pow((1+(i/(100*b))),t)

var ss=(c*((i/(100*b)))*t)/(1+((i/(100*b))*t))
var sc=c*(1-Math.pow((1+(i/(100*b))),-t))

  if(j==1) document.form1.val.value=Math.round(vs*100)/100;
  else if(j==2) document.form1.val.value=Math.round(vc*100)/100;
  
  if(j==1) document.form1.sco.value=Math.round(ss*100)/100;
  else if(j==2) document.form1.sco.value=Math.round(sc*100)/100;
  }