function updtElem2 (URL,obj,callback,el){
o=document.getElementById('eventi');
//alert(o);
updtElem(URL,obj,callback,o);
}



function updtElem3 (URL,obj,callback)
{
var xmlHttp;
var retVal;
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		// Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	xmlHttp.onreadystatechange=function()
	{
		if(xmlHttp.readyState==4)
		{
			if(xmlHttp.status== 200) {
				ans=xmlHttp.responseText;
				ans=JSON.parse(xmlHttp.responseText);
				
				if (ans.status == 600) {
					/*if (ans.action)
						if (ans.action == 'myhome') {
							alert('sessione scaduta');
							window.location.href='/';
						}
					*/
					_nav.timeout();
					//alert ('Sessione scaduta!');
				}	
				//alert(xmlHttp.responseText);
				else {
					callback_f='obj.'+callback+'('+'xmlHttp.responseText'+')';
					eval(callback_f);
				}	
				//retVal=xmlHttp.responseText;
				//document.getElementById(element_id).innerHTML=document.getElementById(element_id).innerHTML+retVal+'<br>';
				//document.getElementById(element_id).innerHTML=retVal;
			}
		}
	}
	xmlHttp.open("GET",URL,true);
	xmlHttp.send(null);
}




//updtElem('/chat/checkchat',buddyobj,'getList()',o);
function updtElem (URL,obj,callback,o)
{
var xmlHttp;
var retVal;
	try
	{
		// Firefox, Opera 8.0+, Safari
		xmlHttp=new XMLHttpRequest();
	}
	catch (e)
	{
		// Internet Explorer
		try
		{
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch (e)
		{
			try
			{
				xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e)
			{
				alert("Your browser does not support AJAX!");
				return false;
			}
		}
	}
	//xmlHttp.setRequestHeader("Content-Type", "text/html;charset=UTF-8");
	//xmlHttp.setRequestHeader("Content-Type", "text/plain;charset=UTF-8");
	xmlHttp.onreadystatechange=function()
	{
		if(xmlHttp.readyState==4)
		{
			if(xmlHttp.status== 200) {
				ans=xmlHttp.responseText;
				ans=JSON.parse(xmlHttp.responseText);
				
				if (ans.status == 600) {
					/*if (ans.action)
						if (ans.action == 'myhome') {
							alert('sessione scaduta');
							window.location.href='/';
						}
					*/
					_nav.timeout();
					//alert ('Sessione scaduta!');
				}	
				//alert(xmlHttp.responseText);
				else {
					callback_f='obj.'+callback+'('+'xmlHttp.responseText'+','+'o'+')';
					eval(callback_f);
				}	
				//retVal=xmlHttp.responseText;
				//document.getElementById(element_id).innerHTML=document.getElementById(element_id).innerHTML+retVal+'<br>';
				//document.getElementById(element_id).innerHTML=retVal;
			}
		}
	}
	xmlHttp.open("GET",URL,true);
	xmlHttp.send(null);
}