function check_aanbieder(){
	var str = "";
	
	if (document.registration.naam.value == "" ) {
		str = str + " bedrijfsnaam\n";
	}	
	if (document.registration.contactpersoon.value == "" ) {
		str = str + " contactpersson\n";
	}

	if (document.registration.adres.value == "" ) {
		str = str + " adres\n";
	}
	if (document.registration.postcode.value == "" ) {
		str = str + " postcode\n";
	}	
	if (document.registration.plaats.value == "" ) {
		str = str + " plaats\n";
	}	
	if (document.registration.telefoon.value == "" ) {
		str = str + " telefoon\n";
	}				
	if (document.registration.email.value=="") {
		str = str + " E-mail\n";
	}else if ( document.registration.email.value.length > 0 && ( document.registration.email.value.indexOf("@",0) == -1 || document.registration.email.value.indexOf(".",0) == -1 ) ) {
			str += " geldig email \n"	;
	}
			
	 if(str == ""){
		  document.registration.action = "opslaan_pasaanbieder.php";
		  document.registration.submit();
	 }
	 else {
			alert("vul de verplichte velden in :\n" + str);
	 }
}

function check_aanbieding(){
	var str = "";
	
	if (document.nform.actieinleiding.value == "" ) {
		str = str + " teaser\n";
	}	
	if (document.nform.advtitel.value == "" ) {
		str = str + " titel\n";
	}

	if (document.nform.inleiding.value == "" ) {
		str = str + " inleiding\n";
	}
	if (document.nform.oms.value == "" ) {
		str = str + " tekst\n";
	}
	if (document.nform.start.value == "" ) {
		str = str + " startdatum\n";
	}
	if (document.nform.eind.value == "" ) {
		str = str + " einddatum\n";
	}	
			
	 if(str == ""){
		  document.nform.action = "opslaan_pasaanbieding.php";
		  document.nform.submit();
	 }
	 else {
			alert("vul de verplichte velden in :\n" + str);
	 }
}



function check_login(){
	var str = "";
	
	if (document.inlogform.email.value == "" ) {
		str = str + " email\n";
	}	

	if (document.inlogform.wachtwoord.value == "" ) {
		str = str + " wachtwoord\n";
	}

	 if(str == ""){
		  document.inlogform.action = "login_pasaanbieder.php";
		  document.inlogform.submit();
	 }
	 else {
			alert("vul de verplichte velden in :\n" + str);
	 }
}