function validateNewsletter()
{
	if(document.frmNewsletter.news_email.value=="")
	{
		alert("Please enter your email address");
		return false;
	}
	if(document.frmNewsletter.news_email.value!="")
	{
		if(document.frmNewsletter.news_email.value.indexOf('@')==-1 && document.frmNewsletter.news_email.value.indexOf('.')==-1)
		{
			alert('Please enter your valid email address');
			return false;
		}
	}		
}