function displayAlert(msg)
{
	if(msg) $('msg_div').innerHTML = msg;
	$('alert_div').className = 'alert_show';
}

function chksend()
{
 if($F('newsletterEmail')=='')
 {
	 $('dispMesg').innerHTML = "Please enter value for Email Address.";	
	 $('dispMesg').style.display = "";
	 return false;
 }
 if(!checkEmail($F('newsletterEmail')))
 {
	 $('dispMesg').innerHTML = "Please enter a valid Email Address.";	
	 $('dispMesg').style.display = "";
	 return false; 
 }
    var url =  'index.php';
	var email = $F('newsletterEmail');
	var myAjax = new Ajax.Request(
	url,
	{
		method: 'get',
		parameters: {mode:'sendNewsletter',email:email},
		onComplete:showMsg
	});
}
function showMsg(originalRequest){
	var response = originalRequest.responseText;
	
	if(response =='ok')
	{
		$('dispMesg').innerHTML = "Thank you for signing up.";	
		$('dispMesg').style.display = "";
		$('newsletterEmail').value = "";	
	}	
}