Aca esta el 'backend'
Código PHP:
<?php
class Backend_Controller extends BM_Controller
{
public function index()
{
set_time_limit(0);
header("Cache-Control: no-cache, must-revalidate");
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");
flush();
$this->__header();
while(1) :
$time2 = date("h:i:s");
echo "<script type=\"text/javascript\">";
echo "tsf.time('{$time2}');";
echo "</script>";
sleep(1);
flush();
endwhile;
$this->__footer();
die();
}
private function __header()
{
$config = BM_Config::singleton();
$url = $config->read('url');
echo '<head>
<title>Backend</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
</head>
<body>
<script type="text/javascript">
var is_khtml = navigator.appName.match("Konqueror") || navigator.appVersion.match("KHTML");
if (is_khtml)
{
var prototypejs = document.createElement("script");
prototypejs.setAttribute("type","text/javascript");
prototypejs.setAttribute("src","javascript/prototype.js");
var head = document.getElementsByTagName("head");
head[0].appendChild(prototypejs);
}
var tsf = window.parent.tsf;
</script>';
}
private function __footer()
{
echo "
</body>
</html>";
}
}
?>
Código:
var tsf = {
time:function(hour)
{
jQuery("#hour").html(hour);
//console.log(hour);
}
};
var comet = {
connection : false,
iframediv : false,
requestPhp : "index.php?controller=backend",
initialize: function()
{
if (navigator.appVersion.indexOf("MSIE") != -1)
{
// For internet explorer
comet.connection = new ActiveXObject("htmlfile");
comet.connection.open();
comet.connection.write("<html>");
comet.connection.write("<script>document.domain = '"+document.domain+"'");
comet.connection.write("</html>");
comet.connection.close();
comet.iframediv = comet.connection.createElement("div");
comet.connection.appendChild(comet.iframediv);
comet.connection.parentWindow.comet = comet;
comet.connection.parentWindow.tsf = tsf;
comet.iframediv.innerHTML = "<iframe id='comet_iframe' src='" + comet.requestPhp + "'></iframe>";
}
else if (navigator.appVersion.indexOf("KHTML") != -1)
{
// For KHTML browsers
comet.connection = document.createElement('iframe');
comet.connection.setAttribute('id', 'comet_iframe');
comet.connection.setAttribute('src', comet.requestPhp);
with (comet.connection.style)
{
position = "absolute";
left = top = "-100px";
height = width = "1px";
visibility = "hidden";
}
document.body.appendChild(comet.connection);
}
else
{
// Firefox and others
comet.connection = document.createElement('iframe');
comet.connection.setAttribute('id', 'comet_iframe');
with (comet.connection.style) {
left = top = "-100px";
height = width = "1px";
visibility = "hidden";
display = 'none';
}
comet.iframediv = document.createElement('iframe');
comet.iframediv.setAttribute('src', comet.requestPhp);
comet.connection.appendChild(comet.iframediv);
document.body.appendChild(comet.connection);
}
},
onUnload: function()
{
if (comet.connection)
{
comet.connection = false;
}
}
};
Código:
<body> <script type="text/javascript"> Event.observe(window, "load", comet.initialize); Event.observe(window, "unload", comet.onUnload); </script>
O sea todo funciona bien, pero no entiendo porque en chrome siempre queda cargando..

