function changeInches()
  {
    var cm = document.getElementById("cm").value;
    var total = cm / 2.54;
    var feet = total / 12;
    feet = parseInt(feet);
    var inches = total % 12;
    inches = Math.round(inches);

    if (feet > 3 && feet < 8)
      {  var feetchoice = feet - 3;
         if (inches >= 0 && inches < 12)
           {  var incheschoice = inches + 1;  }
         else
           {  var incheschoice = 0;  }
      }
    else
      {  var feetchoice = 0;
         var incheschoice = 0;  }
    
    document.addheight.feet[feetchoice].selected = 1;
    document.addheight.inches[incheschoice].selected = 1;
  }


function changeCm()
  {
    var feet = document.getElementById("feet").value;
    var inches = document.getElementById("inches").value;
    feet = feet / 1;
    inches = inches / 1;
    var total = (feet * 12) + inches;
    var cm = total * 2.54;
    var roundcm = Math.round(cm);
    document.addheight.cm.value = roundcm;
  }

function changeInches2()
  {
    var cm = document.getElementById("cm2").value;
    var total = cm / 2.54;
    var feet = total / 12;
    feet = parseInt(feet);
    var inches = total % 12;
    inches = Math.round(inches);

    if (feet > 3 && feet < 8)
      {  var feetchoice = feet - 3;
         if (inches >= 0 && inches < 12)
           {  var incheschoice = inches + 1;  }
         else
           {  var incheschoice = 0;  }
      }
    else
      {  var feetchoice = 0;
         var incheschoice = 0;  }
    
    document.editheight.feet2[feetchoice].selected = 1;
    document.editheight.inches2[incheschoice].selected = 1;
  }


function changeCm2()
  {
    var feet = document.getElementById("feet2").value;
    var inches = document.getElementById("inches2").value;
    feet = feet / 1;
    inches = inches / 1;
    var total = (feet * 12) + inches;
    var cm = total * 2.54;
    var roundcm = Math.round(cm);
    document.editheight.cm2.value = roundcm;
  }