function subelem(obj){
	var elemID = obj.getAttribute('id');
	
	if (elemID == 'first_name' && obj.value == 'First Name'){
		obj.value = '';
	}else if (elemID == 'last_name' && obj.value == 'Last Name'){
		obj.value = '';
	}else if (elemID == 'email' && obj.value == 'Email Address'){
		obj.value = '';
	}	
	
	return true;
}

function subelem2(obj){
	var elemID = obj.getAttribute('id');
	
	if (elemID == 'first_name' && obj.value == ''){
		obj.value = 'First Name';
	}else if (elemID == 'last_name' && obj.value == ''){
		obj.value = 'Last Name';
	}else if (elemID == 'email' && obj.value == ''){
		obj.value = 'Email Address';
	}	
	
	return true;
}

function validateSubscribe(){
	var RE_txt = /\S{2,}/;
	var RE_email = /^[0-9A-Za-z._-]{1,}@[0-9A-Za-z._-]{1,}$/;		

	if (! RE_txt.test(document.getElementById("first_name").value) || document.getElementById("first_name").value == 'First Name'){
		alert("Please enter your first name");
		document.getElementById("first_name").focus();
		return false;
	}

	if (! RE_txt.test(document.getElementById("last_name").value) || document.getElementById("last_name").value == 'Last Name'){
		alert("Please enter your last name");
		document.getElementById("last_name").focus();
		return false;
	}

	if (! RE_email.test(document.getElementById("email").value) || document.getElementById("email").value == 'Email Address'){
		alert("Please enter your email address");
		document.getElementById("email").focus();
		return false;
	}

	if (! document.getElementById("accept").checked){
		alert("You need to check the box to receive information by email in order to subscribe");
		return false;
	}
	
	return true;
}