function calcsquish() {
	if(document.form1.bore.value == "") {
		alert("Please enter stroke in inches!")
		document.form1.bore.focus()
		return false
	}
	if(document.form1.stroke.value == "") {
		alert("Please enter connecting rod length in inches!")
		document.form1.stroke.focus()
		return false
	}
	if(document.form1.gasket.value == "") {
		alert("Please enter dimension: crank centerline to case top in inches!")
		document.form1.gasket.focus()
		return false
	}
	if(document.form1.deck.value == "") {
		alert("Please enter cylinder height in inches!")
		document.form1.deck.focus()
		return false
	}
	if(document.form1.piston.value == "") {
		alert("Please enter base gasket thickness in inches!")
		document.form1.piston.focus()
		return false
	}
	if(document.form1.chamber.value == "") {
		alert("Please enter head gasket thickness in inches!")
		document.form1.chamber.focus()
		return false
	}
	if(document.form1.chamber1.value == "") {
		alert("Please enter piston pin diameter in inches!")
		document.form1.chamber1.focus()
		return false
	}
	if(document.form1.chamber2.value == "") {
		alert("Please enter dimension top of pin hole to squish area of piston top in inches!")
		document.form1.chamber2.focus()
		return false
	}
	var temp1, temp2, temp3, temp4, temp5, temp6, temp7, temp8, temp9, temp10, temp11, temp12, temp13;
	var result1, result2, result3, result4;
	var daRatio, daRatio1, daRatio2, daRatio3, daRatio4
	boreRadius = document.form1.bore.value 
	Stroke = document.form1.stroke.value
	daGasket = document.form1.gasket.value
	daDeck = document.form1.deck.value
	daPiston = document.form1.piston.value
	daChamber = document.form1.chamber.value
	daChamber1 = document.form1.chamber1.value
	daChamber2 = document.form1.chamber2.value
	temp1 = (daGasket * 1) + (daDeck * 1) + (daPiston * 1) + (daChamber * 1)
	temp2 = (boreRadius *1) / 2
	temp3 = temp2 + (Stroke * 1)
	temp4 = (daChamber1 * 1) / 2
	temp5 = temp3 + temp4 + (daChamber2 * 1)
	temp6 = temp1 - temp5
	temp7 = temp3 + temp4
	temp8 = (temp1 - .045) - temp7   
	temp9 = (temp1 - .035) - temp7
	temp10 = (temp1 - .025) - temp7
	temp11 = (daGasket * 1) + (daDeck * 1) + (daPiston * 1)
	temp12 = temp11 - temp5
	daRatio = parseInt(temp6 * 1000) / 1000
	daRatio1 = parseInt(temp8 * 1000) / 1000
	daRatio2 = parseInt(temp9 * 1000) / 1000
	daRatio3 = parseInt(temp10 * 1000) / 1000
	daRatio4 = parseInt(temp12 * 1000) / 1000
	document.form1.ratio.value = daRatio
    document.form1.ratio1.value = daRatio1
	document.form1.ratio2.value = daRatio2
	document.form1.ratio3.value = daRatio3
	document.form1.ratio4.value = daRatio4

}