function checkfields(){
	var str = "";
	
				
	if (document.getElementById("name").value=="") {
		str = str + " Achternaam\n";
	}
	
	if (document.getElementById("hiljky-hiljky").value=="") {
		str = str + " E-mail\n";
	}else if ( document.getElementById("hiljky-hiljky").value.length > 0 && ( document.getElementById("hiljky-hiljky").value.indexOf("@",0) == -1 || document.getElementById("hiljky-hiljky").value.indexOf(".",0) == -1 ) ) {
			str += " geldig email \n"	;
	}
			
	 if(str == ""){
		  document.aform.action = "http://presta.createsend.com/t/r/s/hiljky/";
		  document.aform.submit();
	 }
	 else {
			alert("vul de verplichte velden in :\n" + str);
	 }
}