function calculate(amount)
{
var aMount = document.getElementById('amount').value;
//var aMount = document.getElementById.(aMount).value;
var salesTaxValue = ".04166"; //this is the sales tax percentage.  Can be changed to any value you want.
var salesTaxx = (aMount * salesTaxValue)//mathematically determines the actual total plus sales tax
var salesTax = salesTaxx += aMount;
//document.form.tax.value = subtotal * salesTaxValue; //the sales tax amount

// works! document.getElementById("taxedAmount").innerHTML = "jiblet";
document.getElementById('taxedAmount').innerHTML=salesTax;
}