// JavaScript Document
function check()
{
	if(document.newsletter_frm.mail_name.value == ''){
		alert("Please enter your name");
		document.newsletter_frm.mail_name.focus();
		return false;
	}
	if(document.newsletter_frm.mail_address.value == ''){
		alert("Please enter your email address");
		document.newsletter_frm.mail_address.focus();
		return false;
	}
	if(!checkMail(document.newsletter_frm.mail_address.value)){
		alert("Please enter valid email address");
		document.newsletter_frm.mail_address.focus();
		return false;		
	}
	if(document.newsletter_frm.mail_location.value == ''){
		alert("Please enter your postcode");
		document.newsletter_frm.mail_location.focus();
		return false;
	}
	
}

function checkMail(email){
	var x = email;
	var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (filter.test(x)){
		return true;
	}
	else {
		return false;
	}
}