function formValidator(){
	// Make quick references to our fields
  jQuery.Watermark.HideAll();
	var name = document.getElementById('realname');
	var email = document.getElementById('email');

	// Check each input in the order that it appears in the form!
	if(notEmpty(name, "Please enter your name")){
		if(emailValidator(email, "Please enter a valid email address")){
		  document.forms["join_us"].submit();
			return true;
		}
	}
  jQuery.Watermark.ShowAll();
  return false;
}
function notEmpty(elem, helperMsg){
	if(elem.value.length == 0){
		alert(helperMsg);
		//elem.focus();
		return false;
	}
	return true;
}
function emailValidator(elem, helperMsg){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		alert(helperMsg);
		//elem.focus();
		return false;
	}
}
function message(){
	alert("Thank you for joining us..");
	return true;
}