function isEmail(entry){ 
	var rex= /^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,3}|[0-9]{1,5})(\]?)$/; 
	return rex.test(entry)
}

function validateForm_newsletter(){
	var trueFalse = true;
	
	if(document.getElementById('name').value == ''){
		alert("Please enter your name");
		trueFalse = false;
		document.getElementById('name').focus();
	}else if(document.getElementById('email').value == ''){
		alert("Please enter your email address");
		trueFalse = false;
		document.getElementById('email').focus();
	}else if(isEmail(document.getElementById('email').value) == false){
		alert("Please enter a valid email address");
		trueFalse = false;
		document.getElementById('email').focus();
		document.getElementById('email').select();
	}
	
	return trueFalse;
}