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// COPYRIGHT © S.Westenskow 1997-2000 e-mail: XSSpl@hotmail.com ***
function butterWorth() {
	var rH = document.forms[0].elements[0].value
	var rL = document.forms[0].elements[1].value
	var  f = document.forms[0].elements[2].value
	var c1 = (.1061/(rH * f)) * 1000000
	var l1 = ((.1194 * rH)/ f) * 1000
	var c2 = (.3183/(rH * f)) * 1000000
	var l2 = ((.2387 * rL)/ f) * 1000
	var c3 = (.2122/(rL * f)) * 1000000
	var l3 = ((.0796 * rL)/ f) * 1000
valuec1 = Math.round((c1)*100)/100
	document.forms[0].elements[3].value=valuec1
valuel1 = Math.round((l1)*100)/100
	document.forms[0].elements[4].value=valuel1
valuec2 = Math.round((c2)*100)/100
	document.forms[0].elements[5].value=valuec2
valuel2 = Math.round((l2)*100)/100
	document.forms[0].elements[6].value=valuel2
valuec3 = Math.round((c3)*100)/100
	document.forms[0].elements[7].value=valuec3
valuel3 = Math.round((l3)*100)/100
	document.forms[0].elements[8].value=valuel3
}
// -->