// JavaScript Document
function ajax(url)
{

	req = null;
	
	if (window.XMLHttpRequest) 
	{
		req = new XMLHttpRequest();
		req.onreadystatechange = processReqChange;
		req.open("GET",url,true);
		req.send(null);
	
	} 
	else if (window.ActiveXObject) 
	{
		req = new ActiveXObject("Microsoft.XMLHTTP");
		if (req) 
		{
		
			req.onreadystatechange = processReqChange;
			req.open("GET",url,true);
			
			req.send();
		}
	}
}

function processReqChange()
{
	if (req.readyState == 1) 
	{
		document.getElementById('pagina').innerHTML = 'Carregando, por favor aguarde...';
	}
	
	
	else if (req.readyState == 4) 
	{
	
	
		if (req.status == 200) 
		{
			//for(i=0;i<req.status.length;i++){
			  document.getElementById('pagina').innerHTML = req.responseText;
			  //alert(i);
			  //}
		} 
		else 
		{
			alert("Houve um problema ao obter os dados:n" + req.statusText);
		}
	}
}