function ajaxload(url,id)
{
	if (document.getElementById) 
	{
		var x = (window.ActiveXObject) ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
	}
	if (x)
	{
		x.onreadystatechange = function()
		{
		
			if (x.readyState == 4)// && x.status == 200)
			{
				el = document.getElementById(id);
				el.innerHTML = x.responseText;
				//height = document.getElementById("contenuto").offsetHeight;
				//height += document.getElementById("tab").offsetHeight;
				//el.style.height = height+"px";
			}
		}
	x.open("GET", url, true);
	x.send(null);
	}
}