<!-- Author: Brian Mackenzie -->
<!-- Date: 11th March 2004 -->
<!-- Version: 1.0 -->

<!-- Function:  Calculate distance times from a 30m acceleration tests -->

<!-- Required by: 30accel.htm -->

<!-- Copyright Brian Mackenzie 2004 -->

function calculate()
{

var time = document.stride.time.value;

r1=1.7486085+(time*1.3852527)+(time*time*-0.016995);

r2=2.4091953+(time*2.2899751)+(time*time*-0.040363);

r3=3.5794431+(time*5.0177536)+(time*time*-0.107128);

document.stride.r1.value = nt2dp(r1,2);
document.stride.r2.value = nt2dp(r2,2);
document.stride.r3.value = nt2dp(r3,2);
}

function valclear()

{

document.stride.r1.value = "";
document.stride.r2.value = "";
document.stride.r3.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);
}