function affiche_voyage(id) {
	if (document.body)	{
		var larg = (document.body.clientWidth);
		var haut = (document.body.clientHeight);
	}
	else	{
		var larg = (window.innerWidth);
		var haut = (window.innerHeight);
	}
	var req = null; 
	document.getElementById("zone_voyage").innerHTML = "<div id=\"chargement\">Chargement en cours...</div>";
	if (window.XMLHttpRequest) 	{
		req = new XMLHttpRequest();
		if (req.overrideMimeType) {
			req.overrideMimeType('text/xml');
		}
	} 
	else if (window.ActiveXObject) {
		try {
			req = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e) {
			try {
				req = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch (e) {}
		}
	}
	req.onreadystatechange = function() { 
		document.getElementById("zone_voyage").innerHTML = "<div id=\"chargement\">Chargement en cours...</div>";
		if(req.readyState == 4) {
			if(req.status == 200)	{
				document.getElementById("zone_voyage").innerHTML  = req.responseText;	
			}	
			else {
				document.getElementById("zone_voyage").innerHTML="Error: returned status code " + req.status + " " + req.statusText;
			}
		}
	}; 
	req.open("GET", "tourisme.asp?VOYAGE="+id, true); 
	req.send(null); 
}

function openClose(id) {
	var obj = "";	
		// Check browser compatibility
	if(document.getElementById)
		obj = document.getElementById(id).style;
	else if(document.all)
		obj = document.all[id];
	else if(document.layers)
		obj = document.layers[id];
	else
		return 1;
	// Do the magic :)
	if(obj.display == "")
		obj.display = "none";
	else if(obj.display != "none")
		obj.display = "none";
	else
		obj.display = "block";
}