function c_newsletter()
{

	if(document.newsletter.bedrijfsnaam.value == "")
	{
		alert("Company is obligatory.");
		document.newsletter.bedrijfsnaam.focus();
		return false
	}

	if(document.newsletter.voornaam.value == "")
	{
		alert("First name is obligatory.");
		document.newsletter.voornaam.focus();
		return false
	}	
	
	if(document.newsletter.adres.value == "")
	{
		alert("Postal address is obligatory.");
		document.newsletter.adres.focus();
		return false
	}

	if(document.newsletter.postcode.value == "")
	{
		alert("Zipcode is obligatory.");
		document.newsletter.postcode.focus();
		return false
	}

	if(document.newsletter.plaats.value == "")
	{
		alert("City is obligatory.");
		document.newsletter.plaats.focus();
		return false
	}
	
	if(document.newsletter.telefoon.value == "")
	{
		alert("Telephone is obligatory.");
		document.newsletter.telefoon.focus();
		return false
	}	

	if(document.newsletter.email.value == "")
	{
		alert("E-mailaddress is obligatory.");
		document.newsletter.email.focus();
		return false
	}
	
	return true;
}

function c_automotiveday()
{

	if(document.automotiveday.opleiding.value == "")
	{
		alert("Education is obligatory.");
		document.automotiveday.opleiding.focus();
		return false
	}

	if(document.automotiveday.voornaam.value == "")
	{
		alert("First name is obligatory.");
		document.automotiveday.voornaam.focus();
		return false
	}	
	
	if(document.automotiveday.telefoon.value == "")
	{
		alert("Telephone is obligatory.");
		document.automotiveday.telefoon.focus();
		return false
	}	

	if(document.automotiveday.email.value == "")
	{
		alert("E-mailaddress is obligatory.");
		document.automotiveday.email.focus();
		return false
	}
	
	return true;
}