function validateForm_abonnee(){
	var elem; 
	var element;
	var errs=0;
	var falseColor = "#007AC2";
	var trueColor = "#ffffff";
	
	element = document.getElementById('abonnee_email'); 	if(!validateEmail  (element, true)) { errs += 1; element.style.backgroundColor = falseColor;	} else { element.style.backgroundColor = trueColor; }
	
	if (errs>=1){
		document.getElementById('alertMessage_abonnee').innerHTML = 'Let op: het door u ingevulde e-mail adres is niet geldig.';
	}
	return (errs==0);
};