function checkEmail()
{
	var f = document.footerForm;
	var p = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
	
	if (f.inf_email.value == "")
	{
		alert("Het invullen van uw e-mailadres is verplicht.");
		f.inf_email.focus();
	}
	else if (p.test(f.inf_email.value) == false)
	{
		alert("Het door u ingevulde e-mailadres is onjuist.");
		f.inf_email.focus();
	}
	else
	{
		f.submit();
	}
}

function clearMe(txtField)
{
	if (txtField.value == txtField.defaultValue)
		txtField.value = "";
}

function fillMe(txtField)
{
	if (txtField.value == "")
		txtField.value = txtField.defaultValue;
}