//Name,Address1,Town,Postcode,TelephoneNumber,EmailAddress
function ValidateContactForm(contact) 
{
	if (contact.FirstName.value == '') 
	{
		alert('Please enter your first name.');		
		event.returnValue=false;
		return false;
	}
	if (contact.LastName.value == '') 
	{
		alert('Please enter your last name.');		
		event.returnValue=false;
		return false;
	}
	if (contact.Address1.value == '') 
	{
		alert('Please enter your address.');		
		event.returnValue=false;
		return false;
	}
	if (contact.Town.value == '') 
	{
		alert('Please enter your town.');		
		event.returnValue=false;
		return false;
	}
	if (contact.Postcode.value == '') 
	{
		alert('Please enter your postcode.');		
		event.returnValue=false;
		return false;
	}
	if (contact.TelephoneNumber.value == '') 
	{
		alert('Please enter your telephone number.');		
		event.returnValue=false;
		return false;
	}
	if (contact.EmailAddress.value == '') 
	{
		alert('Please enter your email address.');		
		event.returnValue=false;
		return false;
	}
	var at="@"
		var dot="."
		var str=contact.EmailAddress.value
		var lat=str.indexOf(at)
		var lstr=str.length
		var ldot=str.indexOf(dot)
		
		if (str.indexOf(at)==-1){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}		
		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}
		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}				
		if (str.indexOf(at,(lat+1))!=-1){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}

		if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}

		if (str.indexOf(dot,(lat+2))==-1){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}

		if (str.indexOf(" ")!=-1){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}		
		if (contact.EmailAddress.value.length < 5){
			alert('Please enter a valid email address');
			contact.EmailAddress.focus();
			event.returnValue=false;
			return false;
		}
}