var xmlHttp
var myD
var myEval=""

//limpa
function cleanPanel(refDiv)
{
	myD=refDiv;
	document.getElementById(myD).innerHTML='';
} 
//actualiza
function updatePanel(refUrl,refDiv,refMethod,refEval)
{
	myD=refDiv;
	myEval=refEval;
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	  {
		  alert ("Your browser does not support AJAX!");
		  return;
	  } 
	if (refUrl.indexOf('?')==-1) refUrl=refUrl+"?sid="+Math.random();
	else refUrl=refUrl+"&sid="+Math.random();
	xmlHttp.onreadystatechange= stateChanged;
	xmlHttp.open(refMethod,refUrl,true);
//	xmlHttp.setRequestHeader('Content-Type','text/plain; charset=iso-8859-1');
		if (xmlHttp.overrideMimeType)
			xmlHttp.overrideMimeType("text/html");
	xmlHttp.send(null);	
} 

function stateChanged() 
{ 
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById(myD).innerHTML=xmlHttp.responseText;
		if (myEval.length!=0) eval(myEval)
	}
	else
	{
		document.getElementById(myD).innerHTML='Loading ...';
//		document.getElementById(myD).innerHTML=document.getElementById('loader').innerHTML;
	}
}

function GetXmlHttpObject()
{
	var xmlHttp=null;
	try
	  {
	  // Firefox, Opera 8.0+, Safari
	  xmlHttp=new XMLHttpRequest();
	  }
	catch (e)
	  {
	  // Internet Explorer
	  try
		{
		xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		}
	  catch (e)
		{
		xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		}
	  }
	return xmlHttp;
}