function getXhr() {
	var xhr = null;
	if(window.XMLHttpRequest) // Firefox et autres
		xhr = new XMLHttpRequest();
	else if(window.ActiveXObject){ // Internet Explorer
		try {
			xhr = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (e) {
			xhr = new ActiveXObject("Microsoft.XMLHTTP");
		}
	}
	else { // XMLHttpRequest non supporté par le navigateur
		alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");
		xhr = false;
	}
	return xhr;
}

function forumJeudePage(page){
	var xhr = getXhr();

	categorie = document.getElementById('p_HiddenForum').value;
	resultat = document.getElementById('p_HiddenResultat').value;

	xhr.onreadystatechange = function() {
		if(xhr.readyState == 4 && xhr.status == 200) {
			contexte = xhr.responseText;
			document.getElementById('forum').innerHTML = contexte;
		}
	}

	var data = 'cat='+categorie+'&resultat='+resultat+'&page='+page;
	xhr.open("POST","include/ajax-forum.php",true);
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	xhr.send(data);
}

function modifMsg(obj){
	var xhr = getXhr();

	xhr.onreadystatechange = function() {
		if(xhr.readyState == 4 && xhr.status == 200) {
			contexte = xhr.responseText;
			document.getElementById("forumMsg"+div_id).innerHTML = contexte;
		}
	}
	
	var statut = obj;
	
	if(obj == 'modif') {
		div_id = document.getElementById('p_HiddenDivID').value;
		msg_id = document.getElementById('p_HiddenIDMsg').value;
		var data = 'messageID='+msg_id+'&statut='+statut;
	} else {
		messageTitre = document.getElementById('p_Titre').value;
		messageTexte = document.getElementById('p_Message').value;
		messageID = document.getElementById('p_MessageID').value;
		var data = 'messageID='+messageID+'&statut='+statut+'&messageTitre='+messageTitre+'&messageTexte='+messageTexte;
	}
	
	xhr.open("POST","include/ajax-modifier-msg.php",true);
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	xhr.send(data);
}

function updateMsg(){
	var xhr = getXhr();

	div_id = document.getElementById('p_HiddenDiv').value;
	msg_id = document.getElementById('p_HiddenIDMsg').value;

	xhr.onreadystatechange = function() {
		if(xhr.readyState == 4 && xhr.status == 200) {
			contexte = xhr.responseText;
			document.getElementById('forum').innerHTML = contexte;
		}
	}

	var data = 'cat='+categorie+'&resultat='+resultat+'&page='+page;
	xhr.open("POST","include/ajax-forum.php",true);
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	xhr.send(data);
}

/*function topicJeudePage(page){
	alert('ok');
	var xhr = getXhr();

	topic = document.getElementById('p_HiddenTopic').value;
	categorie = document.getElementById('p_HiddenCat').value;
	resultat = document.getElementById('p_HiddenResultat').value;

	xhr.onreadystatechange = function() {
		if(xhr.readyState == 4 && xhr.status == 200) {
			contexte = xhr.responseText;
			document.getElementById('topic').innerHTML = contexte;
		}
	}

	var data = 'cat='+categorie+'&topic='+topic+'&resultat='+resultat+'&page='+page;
	alert(data);
	xhr.open("POST","include/ajax-forum.php",true);
	xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
	xhr.send(data);
}*/