function getcp(cp,idcp) {
		var xhr_object = null;   

		if(window.XMLHttpRequest) // Firefox   
			xhr_object = new XMLHttpRequest();   
		else if(window.ActiveXObject) // Internet Explorer   
			xhr_object = new ActiveXObject("Microsoft.XMLHTTP");   
			else { // XMLHttpRequest non supporté par le navigateur   
				alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest...");   
				return;   
			}   

		xhr_object.open("POST", "getcp.php", true);   

		xhr_object.onreadystatechange = function() {   
			if(xhr_object.readyState == 4)   
				eval(xhr_object.responseText);   
		}   

		xhr_object.setRequestHeader("Content-type", "application/x-www-form-urlencoded");   
		var data = "codep="+cp+"&idcodep="+idcp;   
		xhr_object.send(data);   
}