function focus_field(field, name) {
	if (field.value == name) {
		field.value = '';
	}
}

function blur_field(field, name) {
	if (field.value == '') {
		field.value = name;
	}
}

function CheckForm(F) {
	if (F.elements.name.value=='')
		return false;
	if (F.elements.email.value=='')
		return false;
	if (!checkemail(F.elements.email.value))
		return false;
	return true;
}

function checkemail(str) {
	var testresults = true;
	var filter=/^([\w-]+(?:\.[\w-]+)*)@((?:[\w-]+\.)*\w[\w-]{0,66})\.([a-z]{2,6}(?:\.[a-z]{2})?)$/i;
	if (filter.test(str))
		return true;
	return false;
}