function unsubscribemain()
{
	var err="";
	if (ValidatorTrim(document.formmain.clsuser_email.value)=="") err+="Email is required field.\n";
	if (err!="") {
		alert(err);
		}
	else
	{		
		document.formmain.action="lcunsubscribe.php";
		document.formmain.submit();
	}	
}