This assignment is either an A or an F.

You should
<ol>
	<li>Make a form that asks the user their height and weight
	<li>Check that their weight is between 40 and 400 pounds
	<li>Check that their height is between 36 and 96 inches
	<li>Compute their body mass index
</ol>

You can find the BMI formula at <a href=http://www.whathealth.com/bmi/formula.html>http://www.whathealth.com/bmi/formula.html</a>.