Quisiera solicitar su ayuda con una coneccion implementada con prototype.
Mi problema es que siempre matiene haciendo peticiones pero en un momento dado se necesita para su ejecucion y despues de un tiempo inciarla nuevamente.
Dejo el script que enconte en internet:
Código:
<script type="text/javascript">
var posc=0;
var comet = {
connection : false,
iframediv : false,
initialize: function() {
if (navigator.appVersion.indexOf("MSIE") != -1) {
// For IE browsers
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.iframediv.innerHTML = "<iframe id='comet_iframe' src='./backend.php'></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', './backend.php');
with (comet.connection.style) {
position = "absolute";
left = top = "-100px";
height = width = "1px";
visibility = "hidden";
}
document.body.appendChild(comet.connection);
} else {
// For other browser (Firefox...)
comet.connection = document.createElement('iframe');
comet.connection.setAttribute('id', 'comet_iframe');
with (comet.connection.style) {
left = top = "-10px";
height = width = "10px";
visibility = "hidden";
display = 'none';
}
comet.iframediv = document.createElement('iframe');
comet.iframediv.setAttribute('src', './backend.php');
comet.connection.appendChild(comet.iframediv);
document.body.appendChild(comet.connection);
}
},
// this function will be called from backend.php
printServerTime: function (time) {
var temp = new Array();
temp = time.split('!');
document.getElementById('totalr').value = temp[0];
$('contenttable').innerHTML = temp[1];
},
onUnload: function() {
if (comet.connection) {
comet.connection = false; // release the iframe to prevent problems with IE when reloading the page
flush();
}
}
}
Event.observe(window, "load", comet.initialize);
Event.observe(window, "unload", comet.onUnload);
</script>
De antemano mil gracias,
