function r1onclick() {
	document.forms.K.opt2.checked=false
	document.forms.K.opt6.checked=false
	if (document.forms.K.opt3.checked==true) {
		document.forms.K.calc1.value="a inches = e inches"
	}
	else if (document.forms.K.opt4.checked==true) {
		document.forms.K.calc1.value="a millimeters = e inches"
	}
	else if (document.forms.K.opt5.checked==true) {
		document.forms.K.calc1.value="a feet, b inches, and c/d inches = e inches"
	}
	else {
	}
}
function r2onclick() {
	document.forms.K.opt1.checked=false
	document.forms.K.opt6.checked=false
	if (document.forms.K.opt3.checked==true) {
		document.forms.K.calc1.value="a inches = e millimeters"
	}
	else if (document.forms.K.opt4.checked==true) {
		document.forms.K.calc1.value="a millimeters = e millimeters"
	}
	else if (document.forms.K.opt5.checked==true) {
		document.forms.K.calc1.value="a feet, b inches, and c/d inches = e millimeters"
	}
	else {
	}
}
function r6onclick() {
	document.forms.K.opt1.checked=false
	document.forms.K.opt2.checked=false
	if (document.forms.K.opt3.checked==true) {
		document.forms.K.calc1.value="a inches = e feet and inches"
	}
	else if (document.forms.K.opt4.checked==true) {
		document.forms.K.calc1.value="a millimeters = e feet and inches"
	}
	else if (document.forms.K.opt5.checked==true) {
		document.forms.K.calc1.value="a feet, b inches, and c/d inches = e feet and inches"
	}
	else {
	}
}
function r3onclick() {
	document.forms.K.opt4.checked=false
	document.forms.K.opt5.checked=false
	opt5blur()
	if (document.forms.K.opt1.checked==true) {
		document.forms.K.calc1.value="a inches = e inches"
	}
	else if (document.forms.K.opt2.checked==true) {
		document.forms.K.calc1.value="a inches = e millimeters"
	}
	else if (document.forms.K.opt6.checked==true) {
		document.forms.K.calc1.value="a inches = e feet and inches"
	}
	else {
	}
}
function r4onclick() {
	document.forms.K.opt3.checked=false
	document.forms.K.opt5.checked=false
	opt5blur()
	if (document.forms.K.opt1.checked==true) {
		document.forms.K.calc1.value="a millimeters = e inches"
	}
	else if (document.forms.K.opt2.checked==true) {
		document.forms.K.calc1.value="a millimeters = e millimeters"
	}
	else if (document.forms.K.opt6.checked==true) {
		document.forms.K.calc1.value="a millimeters = e feet and inches"
	}
	else {
	}
}
function r5onclick() {
	document.forms.K.opt3.checked=false
	document.forms.K.opt4.checked=false
	if (document.forms.K.opt1.checked==true) {
		document.forms.K.calc1.value="a feet, b inches, and c/d inches = e inches"
	}
	else if (document.forms.K.opt2.checked==true) {
		document.forms.K.calc1.value="a feet, b inches, and c/d inches = e millimeters"
	}
	else if (document.forms.K.opt6.checked==true) {
		document.forms.K.calc1.value="a feet, b inches, and c/d inches = e feet and inches"
	}
	else {
	}
}

function process(a,b,c,d) {
	if (document.forms.K.opt3.checked==true) {
		if (document.forms.K.opt1.checked==true) {
			document.forms.K.ans1.value=document.forms.K.arg1.value
		} else if (document.forms.K.opt2.checked==true) {
			document.forms.K.ans1.value=inch2mm(document.forms.K.arg1.value)
		} else {
			document.forms.K.ans1.value=inches2feetinchfrac(document.forms.K.arg1.value)
		}
	}
	else if (document.forms.K.opt4.checked==true) {
		if (document.forms.K.opt1.checked==true) {
			document.forms.K.ans1.value=mm2inch(document.forms.K.arg1.value)
		} else if (document.forms.K.opt2.checked==true) {
			document.forms.K.ans1.value=document.forms.K.arg1.value
		} else {
			document.forms.K.ans1.value=inches2feetinchfrac(mm2inch(document.forms.K.arg1.value))
		}
	}
	else {
		if (document.forms.K.opt1.checked==true) {
			document.forms.K.ans1.value=ftinfrac2inch(document.forms.K.arg1.value,document.forms.K.arg2.value,document.forms.K.arg3.value,document.forms.K.arg4.value)
		} else if (document.forms.K.opt2.checked==true) {
			document.forms.K.ans1.value=inch2mm(ftinfrac2inch(document.forms.K.arg1.value,document.forms.K.arg2.value,document.forms.K.arg3.value,document.forms.K.arg4.value))
		} else {
			document.forms.K.ans1.value=inches2feetinchfrac(ftinfrac2inch(document.forms.K.arg1.value,document.forms.K.arg2.value,document.forms.K.arg3.value,document.forms.K.arg4.value))
		}
	}
}
function opt5blur() {
	document.forms.K.arg2.value=""
	document.forms.K.arg3.value=""
	document.forms.K.arg4.value=""
}