function clearText(thefield) { 

	if (thefield.defaultValue == thefield.value) thefield.value = "";
	
	else thefield.value = thefield.defaultValue; 
	
	}

function validateForm() {

	if (document.newsletterForm.email.value == '') {

		alert('You must enter an email address!');

	} else {

	 	document.newsletterForm.submit();

	}
	
}