function RadioButtonChecked() {
var buttonchecked = false;
if(document.demoform.RadioButton[0].checked == true) {
	buttonchecked = true;
	document.demoform.birth_day.disabled = false;
	document.demoform.birth_month.disabled = false;
	document.demoform.birth_year.disabled = false;
	document.demoform.month.disabled = true;
	document.demoform.litter_year.disabled = true;
	}
else if(document.demoform.RadioButton[1].checked == true) {
	buttonchecked = true;
	document.demoform.birth_day.disabled = true;
	document.demoform.birth_month.disabled = true;
	document.demoform.birth_year.disabled = true;
    document.demoform.month.disabled = false;
    document.demoform.litter_year.disabled = false;
	}

if( buttonchecked == true) { document.demoform.submitbutton.disabled = false; }
else { document.demoform.submitbutton.disabled = true; }
} // function RadioButtonChecked()

function CheckNewAdd() {
var buttonchecked = false;
if(document.new_add.RadioButtonNewAdd[0].checked == true) {
	buttonchecked = true;
	document.new_add.new_add_birth_day.disabled = false;
	document.new_add.new_add_birth_month.disabled = false;
	document.new_add.new_add_birth_year.disabled = false;
	document.new_add.new_add_litter_month.disabled = true;
	document.new_add.new_add_litter_year.disabled = true;
	}
else if(document.new_add.RadioButtonNewAdd[1].checked == true) {
	buttonchecked = true;
	document.new_add.new_add_birth_day.disabled = true;
	document.new_add.new_add_birth_month.disabled = true;
	document.new_add.new_add_birth_year.disabled = true;
    document.new_add.new_add_litter_month.disabled = false;
    document.new_add.new_add_litter_year.disabled = false;
	}

if( buttonchecked == true) { document.new_add.submitbutton.disabled = false; }
else { document.new_add.submitbutton.disabled = true; }
} // function RadioButtonChecked()