function caricamenu(serverPage, objID) 
{
	var obj = document.getElementById(objID);
	var xmlhttp = new XMLHttpRequest(); 
	xmlhttp.open("GET", serverPage);
	xmlhttp.onreadystatechange = function() 
	{
		if (xmlhttp.readyState == 4 && xmlhttp.status == 200) 
		{
			resp=xmlhttp.responseText;
			obj.innerHTML = resp;
		} 
	}
	xmlhttp.send(null);
}