function checkform(){

var CoName = book.company.value
var IndivName = book.name.value
var CoAddress = book.address.value
var VAT = book.vat.value
var Person = book.person.value
var Number = book.number.value
var email = book.email.value
var delegates = book.delegates.value
var spam = book.to_address.value

if (CoName == "")
	{
		alert("Please enter the name of your company (or enter n/a if an individual)");
		book.company.focus();
		return false;
	}
	
	if (IndivName == "")
	{
		alert("Please enter your name (or enter n/a if you entered a company name");
		book.name.focus();
		return false;
	}

if (CoAddress == "")
	{
		alert("Please enter your physical address");
		book.address.focus();
		return false;
	}

if (VAT == "")
	{
		alert("Please enter your company's VAT number (or enter n/a if you don't have a VAT number)");
		book.vat.focus();
		return false;
	}

if (Person == "")
	{
		alert("Please enter a contact person's name");
		book.person.focus();
		return false;
	}
	
if (Number == "")
	{
		alert("Please enter a contact number");
		book.number.focus();
		return false;
	}


if (email == "")
	{
		alert("Please enter your email address");
		book.email.focus();
		return false;
	}
	
if (delegates == "")
	{
		alert("Please enter the number of delegates who will be attending this course");
		book.delegates.focus();
		return false;
	}
	
	if (to_address == "")
	return true
else{
alert("Tastes like spam!");
return false
}

if (email.indexOf("@",0) == -1 || email.indexOf(".",0) == -1)
	{
		alert("The email address is not valid.  Please check and enter again");
		book.email.select();
		book.email.focus();
		return false;
	}

if (confirm("You entered \""+email+"\" as your email address. Is that correct?"))
return true
else{
book.email.focus()
return false
}



return true;
}