<!-- Author: Brian Mackenzie -->
<!-- Date: 11th March 2004 -->
<!-- Version: 1.0 -->

<!-- Function:  Calculate results from the balke test -->

<!-- Required by: balke.htm -->

<!-- Copyright Brian Mackenzie 2004 -->


function vo2maxcalculate()

{
  var distance = document.vo2max.distance.value;
  var vo2 = (((distance / 15)-133)*0.172)+33.3;
  document.vo2max.vo2.value = nt2dp(vo2,2);
}

function vo2clear()

{
  document.vo2max.vo2.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);
}