var intChat;

function getXhr() {
	var xhr = null; 
	
	if(window.XMLHttpRequest) {
		xhr = new XMLHttpRequest(); 
	}
	else if(window.ActiveXObject) {
		try {
			xhr = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e) {
			xhr = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	else {
		alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
		xhr = false; 
	} 
	
	return xhr
}

function slideDiv(divID) {
	Effect.toggle(divID,'slide');
	
	return false;
}

function blockNewsAjax(idgame) {
	var xhr = getXhr();
	
	xhr.onreadystatechange = function() {
		if(xhr.readyState == 4 && xhr.status == 200) {
			document.getElementById('lastnews_back').innerHTML = xhr.responseText;
		}
	}
	
	xhr.open('GET','modules/news/ajax.php?game='+idgame,true);
	xhr.send(null);
}

function previewNews(f,url) {
	var intro = f.intro.value;
	var suite = f.suite.value;
    var titretuto = f.titre.value;
	
    var xhr;
    if (window.XMLHttpRequest) {
		xhr = new XMLHttpRequest();
	}
    else if (window.ActiveXObject) {
		xhr = new ActiveXObject('Microsoft.XMLHTTP');
	}
    else {
		alert('JavaScript : votre navigateur ne supporte pas les objets XMLHttpRequest...');
		return;
	}
    xhr.open('POST',url,true);
    xhr.onreadystatechange = function() {
		if (xhr.readyState == 4) {
			document.getElementById('previewNews').innerHTML = xhr.responseText;
		}
	}
    xhr.setRequestHeader('Content-type','application/x-www-form-urlencoded');
    var data = 'intro='+encodeURIComponent(intro)+'&suite='+encodeURIComponent(suite)+'&titre='+encodeURIComponent(titretuto);
    xhr.send(data);
}