<!-- Author: Brian Mackenzie -->
<!-- Required by: mets.htm -->
<!-- Copyright Brian Mackenzie 2004 -->

function bmrcalculate()
{
  var weight = document.bmr.weight.value;
  var sex = document.bmr.sex.options[document.bmr.sex.selectedIndex].value;
  sc=10;
  if (sex=="Male") sc=11;
  bmr = weight * sc / 24;
  document.bmr.result.value = nt2dp(bmr,2);
}

function metcalculate()
{
  var weight = document.bmr.weight2.value;
  var met = document.bmr.met.value;
  var sex = document.bmr.sex2.options[document.bmr.sex2.selectedIndex].value;
  sc=10;
  if (sex=="Male") sc=11;
  met = weight * sc / 24 * met;
  document.bmr.result2.value = nt2dp(met,2);
}

function bmrclear(a)
{
  document.bmr.result.value = "";
}

function metclear(a)
{
  document.bmr.result2.value = "";
}

function nt2dp(num,dp)
{
<!-- rounds num to dp decimal places -->
  num=num*1+(0.55/Math.pow(10,dp));
  if (dp>0) dp=dp+1;
  b=Math.floor(num).toString().length+dp;
  return num.toString().substr(0,b);
}