// JavaScript Document
function valideer()
{
var el = document.frmMail;
var na = el.naam;
var vn = el.voornaam;
var tel = el.telefoon;
var em = el.email;
var vr = el.vraag;

if(na.value =="")
	{
		alert('Gelieve je naam in te vullen');
		na.focus();
		na.style.backgroundColor = "#e8fa86";
		return false;		
	}
	else
	{
		na.style.backgroundColor = "#F7F7F7";
		true;
	}

if(vn.value =="")
	{
		alert('Gelieve je voornaam in te vullen');
		vn.focus();
		vn.style.backgroundColor = "#e8fa86";
		return false;		
	}
	else
	{
		vn.style.backgroundColor = "#F7F7F7";
		true;
	}

if(tel.value =="")
	{
		alert('Gelieve je telefoonnummer in te vullen');
		tel.focus();
		tel.style.backgroundColor = "#e8fa86";
		return false;		
	}
	else
	{
		tel.style.backgroundColor = "#F7F7F7";
		true;
	}

if(em.value.match(/^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/))
	{
		em.style.backgroundColor = "#F7F7F7";
		true;
	}
	else
	{
		alert('Gelieve je e-mailadres in te vullen'); 
		em.focus();
		em.style.backgroundColor = "#e8fa86";
		return false;
	}

if(vr.value =="")
	{
		alert('Gelieve je vraag en/of opmerking in te vullen');
		vr.focus();
		vr.style.backgroundColor = "#e8fa86";
		return false;		
	}
	else
	{
		vr.style.backgroundColor = "#F7F7F7";
		true;
	}
}