// JavaScript Document
function checkNewsletterSignup()
{
	if (document.newsletter.email.value.length < 1)
	{
		alert('Please enter your email adddress.');
		return false;
	}
	else if (document.newsletter.email.value.length > 50)
	{
		alert('Email address cannot be greater than 50 characters long. Please re-enter.');
		return false;
	}
	else 
	{
			 if ((document.newsletter.email.value.indexOf("letzshop") > 0))
			  {
			   alert("Please enter your Email address, not one of our email addresses");
			   document.newsletter.email.focus();
			   return false;
			  }
			  
			 if ((document.newsletter.email.value.indexOf("@") == -1))
			  {
			   alert("Please enter a valid Email address, that contains an '@' and a '.' e.g. 'name@domain.com'");
			   document.newsletter.email.focus();
			   return false;
			  }
		
			  if ((document.newsletter.email.value.indexOf(".") == -1))
			  {
			   alert("Please enter a valid Email address, that contains an '@' and a '.' e.g. 'name@domain.com'");
			   document.newsletter.email.focus();
			   return false;
			  }
	}
}