// JavaScript Document

function DateDiff(interval, start, end)
{
  var iOut = 0, rounding=true;
  var bufferA = Date.parse(start);
  var bufferB = Date.parse(end);

  // check that the start parameter is a valid Date.
  if ( isNaN (bufferA) || isNaN (bufferB) )
  {
      return 0;
  }
  // check that an interval parameter was not numeric.
  if ( interval.charAt == 'undefined' )
  {
    // the user specified an incorrect interval, handle the error.
    return 0;
  }
  var number = bufferB-bufferA;

  // what kind of add to do?
  switch (interval.charAt(0))
  {
	case 'd': case 'D':
      iOut = parseInt(number / 86400000)+parseInt((number %
86400000)/43200001);
      break ;
    case 'h': case 'H':
      iOut = parseInt(number / 3600000 )+parseInt((number %
3600000)/1800001);
      break ;
    case 'm': case 'M':
      iOut = parseInt(number / 60000 )+parseInt((number % 60000)/30001);
      break ;
    case 's': case 'S':
      iOut = parseInt(number / 1000 )+parseInt((number % 1000)/501);
      break ;
    default:
    // If we get to here then the interval parameter
    // didn't meet the d,h,m,s criteria.  Handle
    // the error.
    return 0;
  } return iOut ;
}

function validateForm(theform)
{
		
	if(theform.title) { 
	if(theform.title.value == "")
	{
	alert("Please enter your title");
		theform.title.focus();
		return (false);
	}
	}
	
	if(theform.forename) {
	if(theform.forename.value == "")
	{
	alert("Please enter your forename");
		theform.forename.focus();
		return (false);
	}
	}
	
	if(theform.surname) {
	if(theform.surname.value == "")
	{
	alert("Please enter your surname");
		theform.surname.focus();
		return (false);
	}
	}
	
	if(theform.dob) {
		
	var Today = new Date();
	var diff = DateDiff('d', theform.dob.value, Today);
	var diff = diff/365
		
	if(theform.dob.value == "")
	{
		alert("Please enter your date of birth");
		theform.dob.focus();
		return (false);
	}
	
	if (diff > 64)
	{
		alert("The maximum age for an adult is 64");
		theform.dob.focus();
		return (false);
	}
	
	if (diff < 0)
	{
		alert("Invalid date of birth");
		theform.dob.focus();
		return (false);
	}
	
	}
	
	if(theform.telephone) {
	if(theform.telephone.value == "")
	{
	alert("Please enter your contact telephone number");
		theform.telephone.focus();
		return (false);
	}
	}
		
	if(theform.house_number) {
	if(theform.house_number.value == "")
	{
	alert("Please enter house number/name");
		theform.house_number.focus();
		return (false);
	}
	}
	
	if(theform.address_1) {
	if(theform.address_1.value == "")
	{
	alert("Please enter address line 1");
		theform.address_1.focus();
		return (false);
	}
	}
	
	if(theform.town_city) {
	if(theform.town_city.value == "")
	{
	alert("Please enter town/city");
		theform.town_city.focus();
		return (false);
	}
	}
		
	if(theform.postcode) {
	if(theform.postcode.value == "")
	{
	alert("Please enter your post code");
		theform.postcode.focus();
		return (false);
	}
	}
	
	if(theform.policy_start_date) {
	
	var Today = new Date();
	var diff = DateDiff('d', Today, theform.policy_start_date.value);
	
	if(theform.policy_start_date.value == "")
	{
		alert("Please enter your policy start date");
		theform.policy_start_date.focus();
		return (false);
	}
	
	if (diff < 0)
	{
		alert("Policy start date must be in the future");
		theform.policy_start_date.focus();
		return (false);
	}
		
	}
		
	if(theform.activities) {
	if(theform.activities.value == "")
	{
	alert("Please enter your activities");
		theform.activities.focus();
		return (false);
	}
	}
		
	if(theform.party_member_1_title) {
	if(theform.party_member_1_title.value == "")
	{
	alert("Please enter party member 1 title");
		theform.party_member_1_title.focus();
		return (false);
	}
	}
	
	if(theform.party_member_1_forename) {
	if(theform.party_member_1_forename.value == "")
	{
	alert("Please enter party member 1 forename");
		theform.party_member_1_forename.focus();
		return (false);
	}
	}
	
	if(theform.party_member_1_surname) {
	if(theform.party_member_1_surname.value == "")
	{
	alert("Please enter party member 1 surname");
		theform.party_member_1_surname.focus();
		return (false);
	}
	}
	
	if(theform.party_member_1_dob) {
	
	var Today = new Date();
	var diff = DateDiff('d', theform.party_member_1_dob.value, Today);
	var diff = diff/365

	if(theform.party_member_1_dob.value == "")
	{
		alert("Please enter party member 1 date of birth");
		theform.party_member_1_dob.focus();
		return (false);
	}	
	
	if (diff > 64)
	{
		alert("The maximum age for an adult is 64");
		theform.party_member_1_dob.focus();
		return (false);
	}

	if (diff < 0)
	{
		alert("Invalid date of birth");
		theform.party_member_1_dob.focus();
		return (false);
	}
	
	}
	
	if(theform.party_member_2_title) {
	if(theform.party_member_2_title.value == "")
	{
	alert("Please enter party member 2 title");
		theform.party_member_2_title.focus();
		return (false);
	}
	}
	
	if(theform.party_member_2_forename) {
	if(theform.party_member_2_forename.value == "")
	{
	alert("Please enter party member 1 forename");
		theform.party_member_1_forename.focus();
		return (false);
	}
	}
	
	if(theform.party_member_2_surname) {
	if(theform.party_member_2_surname.value == "")
	{
	alert("Please enter party member 1 surname");
		theform.party_member_1_surname.focus();
		return (false);
	}
	}
	
	if(theform.party_member_2_dob) {
	
	var Today = new Date();
	var diff = DateDiff('d', theform.party_member_2_dob.value, Today);
	var diff = diff/365

	if(theform.party_member_2_dob.value == "")
	{
		alert("Please enter party member 2 date of birth");
		theform.party_member_2_dob.focus();
		return (false);
	}	
	
	if (diff > 64)
	{
		alert("The maximum age for an adult is 64");
		theform.party_member_2_dob.focus();
		return (false);
	}

	if (diff < 0)
	{
		alert("Invalid date of birth");
		theform.party_member_2_dob.focus();
		return (false);
	}
	
	}
	
	if(theform.party_member_3_title) {
	if(theform.party_member_3_title.value == "")
	{
	alert("Please enter party member 3 title");
		theform.party_member_3_title.focus();
		return (false);
	}
	}
	
	if(theform.party_member_3_forename) {
	if(theform.party_member_3_forename.value == "")
	{
	alert("Please enter party member 3 forename");
		theform.party_member_3_forename.focus();
		return (false);
	}
	}
	
	if(theform.party_member_3_surname) {
	if(theform.party_member_3_surname.value == "")
	{
	alert("Please enter party member 3 surname");
		theform.party_member_3_surname.focus();
		return (false);
	}
	}
	
	if(theform.party_member_3_dob) {
	
	var Today = new Date();
	var diff = DateDiff('d', theform.party_member_3_dob.value, Today);
	var diff = diff/365

	if(theform.party_member_3_dob.value == "")
	{
		alert("Please enter party member 3 date of birth");
		theform.party_member_3_dob.focus();
		return (false);
	}	
	
	if (diff > 64)
	{
		alert("The maximum age for an adult is 64");
		theform.party_member_3_dob.focus();
		return (false);
	}

	if (diff < 0)
	{
		alert("Invalid date of birth");
		theform.party_member_3_dob.focus();
		return (false);
	}
	
	}
	
	if(theform.party_member_4_title) {
	if(theform.party_member_4_title.value == "")
	{
	alert("Please enter party member 4 title");
		theform.party_member_4_title.focus();
		return (false);
	}
	}
	
	if(theform.party_member_4_forename) {
	if(theform.party_member_4_forename.value == "")
	{
	alert("Please enter party member 4 forename");
		theform.party_member_4_forename.focus();
		return (false);
	}
	}
	
	if(theform.party_member_4_surname) {
	if(theform.party_member_4_surname.value == "")
	{
	alert("Please enter party member 4 surname");
		theform.party_member_4_surname.focus();
		return (false);
	}
	}
	
	if(theform.party_member_4_dob) {
	
	var Today = new Date();
	var diff = DateDiff('d', theform.party_member_4_dob.value, Today);
	var diff = diff/365

	if(theform.party_member_4_dob.value == "")
	{
		alert("Please enter party member 4 date of birth");
		theform.party_member_4_dob.focus();
		return (false);
	}	
	
	if (diff > 64)
	{
		alert("The maximum age for an adult is 64");
		theform.party_member_4_dob.focus();
		return (false);
	}

	if (diff < 0)
	{
		alert("Invalid date of birth");
		theform.party_member_4_dob.focus();
		return (false);
	}
	
	}
	
	if(theform.declaration) {
	if(!theform.declaration.checked)
	{
	alert("You must agree to the declaration before submitting your application");
		theform.declaration.focus();
		return (false);
	}
	}
	
	if(theform.summary) {
	if(!theform.summary.checked)
	{
	alert("You must accept the summary of cover before submitting your application");
		theform.summary.focus();
		return (false);
	}
	}
	
	return (true);
}