function send_newsletter(lingua)
{
	document.getElementById('response_news').innerHTML="";
 	var p = document.forms['form_newsletter'];
	var JSONObject = new Object;
	JSONObject.email = p['email'].value;
	JSONObject.lingua = lingua;
    					
	JSONstring = JSON.stringify(JSONObject);
	getMessageResponseNewsletter(JSONstring);
}
  		
function getMessageResponseNewsletter(str)
{
	var xmlHttp;
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		// Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	xmlHttp.onreadystatechange=function()
	{
		if((xmlHttp.readyState==4) && (xmlHttp.status==200))
		{
			document.getElementById('wait_news').style.visibility = "hidden";
			document.getElementById('response_news').innerHTML=xmlHttp.responseText;
			document.form_newsletter.email.value = '';
		}
		else
		{
			document.getElementById('wait_news').style.visibility = "visible";
		}

	}

	var url="php_script/set_newsletter.php";
	var content = "data="+str;
	xmlHttp.open("POST",url,true);
	xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlHttp.setRequestHeader("Content-length", content.length);
	xmlHttp.setRequestHeader("Connection", "close");
	xmlHttp.send(content);
}