function getHTTPObject()
{
	// code for Mozilla, etc.
	if (window.XMLHttpRequest)
  	{
  		xmlhttp=new XMLHttpRequest()
  	}
// code for IE
	else if (window.ActiveXObject)
  	{
  		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
  	}
	return xmlhttp;
}
var http = getHTTPObject();

function sigup_newsletter(email)
{
	
	if(Trim(document.frmnewsletter.newsletter_email.value) == "Enter Your Email Address Here")
	{
		//	alert("Please enter email address");
		document.getElementById('newsletter_email').className = 'input-red';
		document.getElementById('show_newsletteremail').innerHTML = 'Please Enter Email Address';
		document.frmnewsletter.newsletter_email.select();
		return false;
	}
	if(Trim(document.frmnewsletter.newsletter_email.value) == "")
	{
		//	alert("Please enter email address");
		document.getElementById('newsletter_email').className = 'input-red';
		document.getElementById('show_newsletteremail').innerHTML = 'Please Enter Email Address';
		document.frmnewsletter.newsletter_email.focus();
		return false;
	}
	if(!isValidEmail_withoutalert(document.frmnewsletter.newsletter_email.value))
	{
		document.getElementById('newsletter_email').className = 'input-red';
		document.getElementById('show_newsletteremail').innerHTML = 'Please Enter Your Valid Email Address';
		return false;
	}
	
	email = document.frmnewsletter.newsletter_email.value;
	//get url of ajax file
	var url = ajax_url + "ajax_newsletter_signup.php";
	
	url = url + "?email="+ escape(email);
	http.open("GET", url, true);
	http.onreadystatechange = addnewsletteremail;
    http.send(null);
}

function addnewsletteremail()
{
	if (http.readyState == 4)
	{
   		var xmlDocument = http.responseXML; 
		var newsletterid  = xmlDocument.getElementsByTagName('id').item(0).firstChild.data;
		var email  = xmlDocument.getElementsByTagName('email').item(0).firstChild.data;
		if(newsletterid == 0)
			window.location= site_url +'Newsletter_Signup/No/'+email;
		else
			window.location= site_url +'Newsletter_Signup/Yes/'+email;
	}
}