var nop = null;

function updateNewsletter(op) {
	$('#newsl_response').hide();

	var frm = document.forms['newsl'];
	
	if(frm.elements['email'].value.lastIndexOf(".")<=frm.elements['email'].value.indexOf("@"))
		alert("Please enter a valid e-mail first!");
	else {

	$.get("/newsletter.php", { email: frm.elements['email'].value, operation: op },
	function(data){
	 $('#newsl_response').show();
	 $('#newsl_response').html(data);
	});
	
	}
	
	return false;
}