function fillBirth()
{
    var val1 = form1.Scn1.value;
	var val2 = form1.Scn2.value;
	if ((val1.length!=6)||(val2.length!=7)) return;

	var first = parseInt(val2.substring(0,1));
	if (first<=2) {
        form1.birthyear.value = parseInt(val1.substring(0,2)) + 1900;
    } else {
        form1.birthyear.value = parseInt(val1.substring(0,2)) + 2000;
    }
    form1.birthmonth.value = val1.substring(2,4);
    form1.birthday.value = val1.substring(4,6);
}