function check()
{
var letters = document.agechecker.dag.value.length +1;


if (letters <= 2)
{
	document.agechecker.dag.focus()}
else
{
	document.agechecker.maand.focus()}
} 
function check2()
{
var letters = document.agechecker.maand.value.length +1;
if (letters <= 2)
{document.agechecker.maand.focus()}
else
{document.agechecker.jaar.focus()}
}