function convert(form)
{
var b = (form.b.value)
var res = eval(form.res.value)
var ama = eval(form.ama.value)
var conv = 0
if (b == "Australian Dollars"){conv = 1.0492};
if (b == "Us Dollars"){conv = .9565};
if (b == "Euro"){conv = 0.6189};
if (b == "Japanese Yen"){conv = 104.3502};
if (b == "Pounds Sterling"){conv = 0.4904};

form.res.value = ((ama*conv).toFixed(2))
}