<!-- Author: Brian Mackenzie -->
<!-- Date: 11th March 2004 -->
<!-- Version: 1.0 -->
<!-- Function:  Calculate the results from the treadmill vo2 max test -->
<!-- Required by: treadmill.htm -->
<!-- Copyright Brian Mackenzie 2004 -->

function vo2maxcalculate()
{
  var time = document.vo2max.time.value;
  var vo2 = (time *2)+ 42;
  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);
}