// Script for BMI calculator
// This script was written by Chris Dawson - www.chrisdawson.org.uk
<!-- hide this script from old browsers
function temp(form)
{
  var a = parseFloat(form.inc.value, 10);
  var b = parseFloat(form.lb.value, 10);
  var c = 0;
    //check for false data 
if (a == 0) { 
 alert("Please enter your height in inches!")
 }
 else if (b == 0) {
 alert("Please enter your weight in pounds!")
 }
  e = a * a
  c = (b / e) * 703;
  d = Math.round(c)
  form.bmi.value = d;
}
// done hiding from old browsers -->