var xmlHttp

function GetXmlHttpObject(handler)
{ 
	var objXmlHttp=null
	
	if (navigator.userAgent.indexOf("Opera")>=0)
	{
	alert("This example doesn't work in Opera") 
	return 
	}
	if (navigator.userAgent.indexOf("MSIE")>=0)
	{ 
	var strName="Msxml2.XMLHTTP"
	if (navigator.appVersion.indexOf("MSIE 5.5")>=0)
	{
	strName="Microsoft.XMLHTTP"
	} 
	try
	{ 
	objXmlHttp=new ActiveXObject(strName)
	objXmlHttp.onreadystatechange=handler 
	return objXmlHttp
	} 
	catch(e)
	{ 
	alert("Error. Scripting for ActiveX might be disabled") 
	return 
	} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0)
	{
	objXmlHttp=new XMLHttpRequest()
	objXmlHttp.onload=handler
	objXmlHttp.onerror=handler 
	return objXmlHttp
	}
} 

function ajaxQuery(url, callback)
{ 
	//document.getElementById("progetti").style.display="none"
	//document.getElementById("dettaglio").style.display="none"
	function stateChanged() {
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		callback(xmlHttp.responseText)
	} 

	} 
	xmlHttp=GetXmlHttpObject(stateChanged)
	xmlHttp.open("GET", url , true)
	xmlHttp.send("")
} 

function doAjaxQuery(url, divId)
	{ 
	ajaxQuery(url, function dummy()
		{ 
		document.getElementById(divId).innerHTML=xmlHttp.responseText
		//alert(strId)
	} )

	} 

function mo(o){o.className=='stateoff'?o.className='stateon': o.className=o.className; }
function mx(o){o.className=='stateon'?o.className='stateoff': o.className=o.className; }
function mc(o){o.className='stateclicked'; }