function openAjax() 
{

var ajax;

try
	{
    ajax = new XMLHttpRequest(); 
	}
	catch(ee)
	{
    try
    	{
        ajax = new ActiveXObject("Msxml2.XMLHTTP"); 
    	}
    	catch(e)
    	{
        try
        	{
            ajax = new ActiveXObject("Microsoft.XMLHTTP"); 
            }
        catch(E)
        	{
            ajax = false;
            }
		}
	}
return ajax;
}


function abrir(url)
{
	top.location = "#hash";
        document.getElementById("conteudo").innerHTML = "<p class=loading align=center>Carregando...</p>";   
        var ajax = openAjax(); 
        ajax.open("GET", url,true); 
        ajax.onreadystatechange=function() 
	{
    if (ajax.readyState==4)
    	{
    	var texto = ajax.responseText
    	texto = texto.replace(/\+/g," ");
    	texto=unescape(texto);
    	document.getElementById("conteudo").innerHTML = texto;
        }
	}
ajax.send(null)
}