var req;
function Slxd(caminho) 
{ 
    req = null; 
    //(Mozilla/Safari) 
    if (window.XMLHttpRequest) { 
        req = new XMLHttpRequest(); 
        req.onreadystatechange = Sprc; 
        req.open("GET", caminho, true); 
        req.send(null); 
    //(IE) 
    } else if (window.ActiveXObject) { 
        req = new ActiveXObject("Microsoft.XMLHTTP"); 
        if (req) { 
            req.onreadystatechange = Sprc; 

            req.open("GET", caminho, true); 
            req.send(); 
        } 
    } 
} 
function Sprc() 
{ 
			document.getElementById('servc').innerHTML = "<div style='text-align: center'><br><img src='w_imagens/carregando.gif' border='0' width='32' height='32' alt=''><br><font face='tahoma' size='2' color='#4051E3'><b>Carregando, aguarde...</b></font></div>";
    if (req.readyState == 4) { 
        if (req.status == 200) { 
            document.getElementById('servc').innerHTML = unescape(req.responseText); 
        } else { 
            alert("Houve um problema ao obter os dados:\n" + req.statusText); 
        } 
    } 
} 
function trocar(nume) { 
    var caminho; 
    caminho = "./js_servs.asp?nume="+nume 
    Slxd(caminho); 
}