function maj(koi,ou){
	//document.title = "Impulsion Jazz - "+koi; 
	var req = null; 
	
	document.getElementById(ou).innerHTML  = "chargement en cours";
	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(){ 
		if(req.readyState == 4){
			if(req.status == 200){
				var contget = req.responseText;
				tit = contget.substr(4,contget.indexOf('-->')-4);
				if(tit=='' || tit==null) tit='Impulsion Jazz';
				txt = contget.substr(contget.indexOf('-->')+3,contget.length);
				document.getElementById(ou).innerHTML  = txt;
				document.title=tit;
			}	
			else{
				document.getElementById(ou).innerHTML="Error: returned status code " + req.status + " " + req.statusText;
			}	
		} 
	}; 
	req.open("GET", "content.php?page="+koi, true); 
	req.send(null);	
}

var lis = document.getElementById('menu').getElementsByTagName('a');
for(var i=0 ; i<lis.length ; i++){	
	lis[i].onclick=function(){ 		
		maj(this.href,'contenu');
		//alert(this.href);
		return false;		
	};
}