IE(6,7) and XmlHttpRequest Problem...

[buntyindia]

Hi everyone.

I have some javascript function which I call like this:

DoXHRequest("somepage.asp", "POST", params, TheCallbackFunction);

DoXHRequest is defined something like this:

(xmlHttp is XmlHttpRequest properly defined elsewhere)

function DoXHRequest(url, params, CallbackMethod)
{
xmlHttp.onreadystatechange = CallbackMethod;
xmlHttp.open("GET", url + "?" + params , true);
xmlHttp.send(null);
}
 

that function is called for example in some "onclick" handler for button (or
anything else)
in callback there is usual...

[PHP]function TheCallback
{
if (xmlHttp.readyState == 4) { do something }
}[/PHP]

However, this works ok in IE(6,7) ONLY FIRST TIME CLICKED (DoXHR function
invoked), on second click xmlHttp never gets (again) to readyState 4 (or
never invokes callback method again?).

In Firefox everything works perfectly.

Please Help .....


Regards,

[acoder]

DoXHRequest expects three parameters and you're giving it 4.