function calc(form)  {
	form.cagr1.value = (Math.round(1000*(Math.pow((form.end1.value/form.start1.value), 1/form.numyrs1.value) - 1))/10);
	form.cagr2.value = (Math.round(1000*(Math.pow((form.end2.value/form.start2.value), 1/form.numyrs2.value) - 1))/10);
}