<!-- Copyright 2006, Sandeep Gangadharan -->

function get_bmr() {
 if (document.bmr_calc.weight.value.length == 0) {
      alert('Weight field is empty!'); return false; }
 if (document.bmr_calc.height.value.length == 0) {
      alert('Height field is empty!'); return false; }
 if (document.bmr_calc.age.value.length == 0) {
      alert('Age field is empty!'); return false; }

 if (document.bmr_calc.gender1[0].checked) {
    document.bmr_calc.result_bmr.value = 665.51+(9.463*(document.bmr_calc.weight.value))+(1.8496*(document.bmr_calc.height.value) * 2.54)-(4.6756*(document.bmr_calc.age.value));
 }
 if (document.bmr_calc.gender1[1].checked) {
    document.bmr_calc.result_bmr.value = 66.473+(13.751*(document.bmr_calc.weight.value))+(5.0033*(document.bmr_calc.height.value) * 2.54)-(6.55*(document.bmr_calc.age.value));
 }
 num1 = Math.pow(10, 2);
 document.bmr_calc.result_bmr.value = Math.round(document.bmr_calc.result_bmr.value * num1) / num1;
}