<!--
//
function rival (form)
{
var x = parseFloat((form.data1.options[form.data1.selectedIndex].value));
var y = parseFloat((form.data2.options[form.data2.selectedIndex].value));
form.utifin.value = Math.round ((y/x*form.somma.value)*100)/100;
form.utifiin.value = Math.round ((y/x*form.somma.value)/(1936.27)*100)/100;
}
// end -->