<!---
var a=""
var b=""
var c=""
function calcSpl() {
	a = parseInt(document.fma.spl.value)
	b = parseInt(document.fmb.watts.value)
// Calculate Log (base10) of b : c = parseFloat((Math.LOG10E*Math.log(b)))
// Get result and strip off mantissa
	c = parseInt((10*(Math.LOG10E*Math.log(b)))+a)
	document.fmc.outputw.value="" + c + " dB SPL."
}

function rstfields() {
	document.fma.spl.value= ""
	document.fmb.watts.value= ""
	document.fmc.outputw.value= ""
	}
function nowback()  {
     history.back()
}
//--->