function createHttpObject()
{
    var ro;
    var browser = navigator.appName;
    if(browser == "Microsoft Internet Explorer")
    {
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else
    {
        ro = new XMLHttpRequest();
    }
    
    return ro;

}
	
var http = createHttpObject();

function newsletter_do()
{
	document.getElementById('newsletter').bouton.disabled = true;
	document.getElementById('newsletter').bouton.value = 'Veuillez patienter...';
	var email = document.getElementById('newsletter').email.value;
	var site = document.getElementById('newsletter').site.value;
	var langue = document.getElementById('newsletter').langue.value;
	
  http.open("GET", 'http://www.jouer-au-poker.org/newsletter.php?site='+site+'&langue='+langue+'&email='+email, true);
  http.onreadystatechange = ahandleHttpResponse;
  http.send(null);	
  document.getElementById('newsletter').bouton.value = 'S\'inscrire';
  document.getElementById('newsletter').bouton.disabled = false;
}	

function ahandleHttpResponse()
{
	if (http.readyState == 4)
	{
		var msg = http.responseText;
		if (msg == 'ok')
			document.getElementById('return').innerHTML = '<font face="verdana,arial" size="2" color="green"><b>Inscription r&eacute;ussie !</b></font>';
		else
		{
			if (msg == 'empty')
				msg = 'Adresse e-mail non saisie !';
			else if (msg == 'notanemail')
				msg = 'Adresse e-mail incorrecte !';
			else if (msg == 'already')
				msg = 'Adresse e-mail d&eacute;j&agrave; inscrite !';
			document.getElementById('return').innerHTML = '<font face="verdana,arial" size="2" color="red"><b>'+msg+'</b></font>';	
		}
	}
}