var con_foto = new XHConn();
var fin_foto= function (oXML) { document.getElementById('visor').innerHTML = oXML.responseText; };
function visu_img(foto){
	var cargando = '<table width="265" height="187" border="0" cellpadding="0" cellspacing="0"><tr>';
    cargando += '<td><div align="center" class="cab_par"><img src="../img/cargando2.gif"  width="16" height="16"><br><br>cargando imagen...<br></div></td></tr></table>';
	document.getElementById('visor').innerHTML = cargando;
	window.setTimeout("con_foto.connect('../visu_foto.php', 'GET', 'foto="+foto+"', fin_foto)", 1000);
	//con_foto.connect("../visu_foto.php", "GET", "foto="+foto, fin_foto)
}