<!--

function validateFormA(FormA)
{


if (!validNum(FormA.bversion1,"Current version number",true))
    return false;

if (!validMax(FormA.bversion1,1,true))
    return false;

if (!validNum(FormA.bversion2,"Current version number",true))
    return false;

if (!validMax(FormA.bversion2,1,true))
    return false;

if (!validNum(FormA.bversion3,"Current version number",true))
    return false;
    
if (!validNum(FormA.breg1,"Current Registration number",true))
    return false;

if (!validMax(FormA.breg1,1,true))
    return false;

   if (!validNum(FormA.breg2,"Current Registration number",true))
    return false;

if (!validMax(FormA.breg2,2,true))
    return false;

if (!validNum(FormA.breg3,"Current Registration number",true))
    return false;

if (!validMax(FormA.breg3,3,true))
    return false;
    
if (!validNum(FormA.breg4,"Current Registration number",true))
    return false;

if (!validMax(FormA.breg4,8,true))
    return false;
}


function validateFormB(FormB)
{


if (!validNum(FormB.bversion1,"Current version number",true))
    return false;

if (!validMax(FormB.bversion1,1,true))
    return false;

if (!validNum(FormB.bversion2,"Current version number",true))
    return false;

if (!validMax(FormB.bversion2,1,true))
    return false;

if (!validNum(FormB.bversion3,"Current version number",true))
    return false;
    
if (!validNum(FormB.breg1,"Current Registration number",true))
    return false;

if (!validMax(FormB.breg1,1,true))
    return false;

   if (!validNum(FormB.breg2,"Current Registration number",true))
    return false;

if (!validMax(FormB.breg2,2,true))
    return false;

if (!validNum(FormB.breg3,"Current Registration number",true))
    return false;

if (!validMax(FormB.breg3,3,true))
    return false;
    
if (!validNum(FormB.breg4,"Current Registration number",true))
    return false;

if (!validMax(FormB.breg4,8,true))
    return false;
}

function validateFormC(FormC)
{

    
if (!validRequired(FormC.os0,"Church Name"))
    return false;
  
if (!validRequired(FormC.os1,"Church Post Code"))
    return false;

}

function validateFormC1(FormC1)
{

    
if (!validRequired(FormC1.os0,"Church Name"))
    return false;
  
if (!validRequired(FormC1.os1,"Church Post Code"))
    return false;

}


function validRequired(formField,fieldLabel)
{
  var result = true;
  
  if (formField.value == "")
  {
    alert('Please enter a valid ' + fieldLabel);
    formField.focus();
    result = false;
  }
  
  return result;
}

function validMax(formField,NumMax,required)
{
  var result = true;
 
  if (result && (formField.value.length != NumMax))
  {
    alert("Not Valid!  Please check the Registration and Version numbers");
    formField.focus();
    result = false;
  }
   
  return result;

}

function validNum(formField,fieldLabel,required)
{
  var result = true;

  if (required && !validRequired(formField,fieldLabel))
    result = false;
  
   if (result)
   {
     var num = parseInt(formField.value,10);
     if (isNaN(num))
     {
       alert('Please enter a valid number for ' + fieldLabel );
      formField.focus();    
      result = false;
    }
  } 
  
  return result;
}

<!-- Begin
var isNN = (navigator.appName.indexOf("Netscape")!=-1);
function autoTab(input,len, e) {
var keyCode = (isNN) ? e.which : e.keyCode; 
var filter = (isNN) ? [0,8,9] : [0,8,9,16,17,18,37,38,39,40,46];
if(input.value.length >= len && !containsElement(filter,keyCode)) {
input.value = input.value.slice(0, len);
input.form[(getIndex(input)+1) % input.form.length].focus();
}
function containsElement(arr, ele) {
var found = false, index = 0;
while(!found && index < arr.length)
if(arr[index] == ele)
found = true;
else
index++;
return found;
}
function getIndex(input) {
var index = -1, i = 0, found = false;
while (i < input.form.length && index == -1)
if (input.form[i] == input)index = i;
else i++;
return index;
}
return true;
}


function updateTextFieldA1() {
    document.FormA.os0.value = 
        document.FormA.bversion1.value + '.' +
        document.FormA.bversion2.value + '.' +
        document.FormA.bversion3.value;

}

function updateTextFieldA2() {
    document.FormA.os1.value = 
        document.FormA.breg1.value + '-' +
        document.FormA.breg2.value + '-' +
        document.FormA.breg3.value + '-' +
        document.FormA.breg4.value;
}

function updateTextFieldB1() {
    document.FormB.os0.value = 
        document.FormB.bversion1.value + '.' +
        document.FormB.bversion2.value + '.' +
        document.FormB.bversion3.value;

}

function updateTextFieldB2() {
    document.FormB.os1.value = 
        document.FormB.breg1.value + '-' +
        document.FormB.breg2.value + '-' +
        document.FormB.breg3.value + '-' +
        document.FormB.breg4.value;
}

function updateTextFieldC1() {
    document.FormC.os0.value = 
        document.FormC.bversion1.value + '.' +
        document.FormC.bversion2.value + '.' +
        document.FormC.bversion3.value + ' ' +
        document.FormC.breg1.value + '-' +
        document.FormC.breg2.value + '-' +
        document.FormC.breg3.value + '-' +
        document.FormC.breg4.value;
}

function updateTextFieldC2() {
    document.FormC.os1.value = 
    document.FormC.on0.value + ' ' +
    document.FormC.on1.value;
}

     


// -->