function checkformcontact(form){
	var postMessage = true;
	
	if(form.achternaam.value==""){
		document.getElementById("achternaam").style.backgroundColor='#f20';
                                document.getElementById("achternaam").style.border='1px solid #00aebb';
		document.getElementById("achternaamlabel").innerHTML = "<font color=\"#f22\">Geen achternaam ingevuld</font>";
		postMessage = false;
	}
	else{
		document.getElementById("achternaam").style.backgroundColor='#fff';
                                document.getElementById("achternaam").style.border='1px solid #00aebb';
		document.getElementById("achternaamlabel").innerHTML = 'Achternaam';
		}

	if(form.woonplaats.value==""){
		document.getElementById("woonplaats").style.backgroundColor='#f20';
                                document.getElementById("woonplaats").style.border='1px solid #00aebb';
		document.getElementById("woonplaatslabel").innerHTML = "<font color=\"#f22\">Geen woonplaats ingevuld</font>";
		postMessage = false;
	}
	else{
		document.getElementById("woonplaats").style.backgroundColor='#fff';
                                document.getElementById("woonplaats").style.border='1px solid #00aebb';
		document.getElementById("woonplaatslabel").innerHTML = 'Woonplaats';
		}

	if(form.telefoon.value==""){
		document.getElementById("telefoon").style.backgroundColor='#f20';
                                document.getElementById("telefoon").style.border='1px solid #00aebb';
		document.getElementById("telefoonlabel").innerHTML = "<font color=\"#f22\">Geen telefoon ingevuld</font>";
		postMessage = false;
	}
	else{
		document.getElementById("telefoon").style.backgroundColor='#fff';
                                document.getElementById("telefoon").style.border='1px solid #00aebb';
		document.getElementById("telefoonlabel").innerHTML = 'Telefoon';
		}

	if (form.email.value == ""){
		document.getElementById("email").style.background='#f20';
                                document.getElementById("email").style.border='1px solid #00aebb';
		document.getElementById("emaillabel").innerHTML = "<font color=\"#f22\">Geen emailadres ingevuld</font>";
		postMessage = false ;
		}
		else {
			document.getElementById("email").style.backgroundColor='#fff';
			document.getElementById("emaillabel").innerHTML = 'Email';
			}
			
	if (form.email.value == ""){
		document.getElementById("email").style.background='#f20';
		document.getElementById("email").style.border='1px solid #00aebb';
		document.getElementById("emaillabel").innerHTML = "<font color=\"#f22\">Geen emailadres ingevuld</font>";
		postMessage = false ;
		}
		else {
			document.getElementById("email").style.backgroundColor='#fff';
  		                document.getElementById("email").style.border='1px solid #00aebb';
			document.getElementById("emaillabel").innerHTML = 'Email';
			}
			
	if(form.email.value != ""){
		var str=form.email.value;
		var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i
		if (filter.test(str)){ document.getElementById("emaillabel").innerHTML = 'Email';
		document.getElementById("email").style.backgroundColor='#fff';
		document.getElementById("email").style.border='1px solid #00aebb';
		}
		else{
			document.getElementById("emaillabel").innerHTML = "<font color=\"#f22\">Ongeldig emailadres</font>";
			document.getElementById("email").style.backgroundColor='#f20';
		                document.getElementById("email").style.border='1px solid #00aebb';
                               postMessage = false ;
			}
		}

	if(form.toelichting.value==""){
		document.getElementById("toelichting").style.border='1px solid #00aebb';
		document.getElementById("toelichting").style.backgroundColor='#f20';
		document.getElementById("toelichtinglabel").innerHTML = "<font color=\"#f22\">Geen vraag geformuleerd</font>";
		postMessage = false;
	}
	else{
		document.getElementById("toelichting").style.backgroundColor='#fff';
		document.getElementById("toelichting").style.border='1px solid #00aebb';
		document.getElementById("toelichtinglabel").innerHTML = 'Vraag';
		}

	return postMessage;
	}