function checkKlantenservice(obj){

var msg = 'U heeft de volgende velden niet juist ingevuld: \n\n';
var correct = true;

re = /[a-zA-Z]/ ;
if (!re.test(obj.naam.value)) {
correct = false; 
msg = msg + '- Voor- en achternaam  \n';
}

if (!(obj.geslacht[0].checked || obj.geslacht[1].checked)){
correct = false; 
msg = msg + '- Geslacht \n';

}
if (obj.adres.value == "") {
correct = false; 
msg = msg + '- Adres \n';

}
if (obj.land.value == "Belgie"){
re =  /^[0-9][0-9][0-9][0-9]$/;
}
else if(obj.land.value == "Nederland"){
re =  /^[0-9][0-9][0-9][0-9] ?[A-Z][A-Z]$/;
}
if (!re.test(obj.postcode.value)){
	correct = false; 
	msg = msg + '- Postcode \n';
}
if (obj.woonplaats.value == ""){
correct = false; 
msg = msg + '- Woonplaats \n';

}

////////////////////
//check telefoon ///
////////////////////
var cp	= new Array ( 'nl', 'be' );
	cp ['nl'] = 31;
	cp ['be'] = 32;
	// Create array with length of phonenumber
var cl	= new Array ( 'nl', 'be' );
	cl ['nl'] = 8;
	cl ['be'] = 7;
	// Create array for valid SECOND numbers in zonenumber
var vs	= new Array ( 'nl', 'be' );
	vs ['nl'] = 7;
	vs ['be'] = 9;
	
var nr		= obj.telefoon.value;
var belg 	= obj.land.value;
if ( belg == "Belgie" ){
	var land = "be";
	}
else {
	var land = "nl";
}
nr = nr.replace ( /\(.*?0.*?\)/g, '' );
nr = nr.replace ( /[^+0-9]/g, '' );
var patt	= '^(0|(00|\\+)' + cp [ land ] + ')[1-' + vs [ land ] + ']{1}[0-9]{' + cl [ land ] + '}$';	
var valid	= nr.match ( patt );
if ( !valid ){
	correct = false;
	msg = msg + '- Telefoonnummer \n';

}
//////////////////////
/// Emailadres ///////
//////////////////////
var email = obj.emailadres.value;
if (email == ""){
	correct = false;
	msg = msg + '- E-mailadres \n';

}

else if (!email.match(/^[_\.0-9a-zA-Z-]+@([0-9a-zA-Z][0-9a-zA-Z-]+\.)+[a-zA-Z]{2,6}$/)) {
		correct = false;
		msg = msg + '- E-mailadres \n';
	}
if (obj.FormsMultiLine1.value == ""){
correct = false; 
msg = msg + '- Omschrijving \n'
}

if (correct == true){obj.action = 'http://www.gratisopreis.nl/klantenservice/';}
if (correct == false){ window.alert(msg);}
return correct;
}