xmlhttprequest, FFox, Hanging on re-call

[simonB2007]

K,
I have a Javascript working in IE6, but works in FF2.0.0.4 for a short while than hangs.
(Win XP)

Here's how to reproduce:

http://www.outofthebluesolutions.co.uk/tm/t.asp

(also opens a popup for my own debug data)

(1)On page open, the request calls to NDR.asp, returns "Art" and populates the navigational tree.
(2) Click on the '+' next to ART, and the request is called again to return "Caramic" and "Pen-Paint" which are also added to the tree.
(3) Click on "Ceramic" ... and nothing happens.
In the debug (pop up) i see that the request object was called to open, and there it hangs forever more !?

Now the main function for operating the request (f_request) is below, witht the debug lines left in so you can refer to in the pop-up.

I've started with a .abort() to kill any previous left-overs, hardcoded the send path .... so cant see why 1 call would differ from another ?

Hope someone can help !!>!

Many thanks
Simon

function f_request(s_inData, s_path){
	if(!s_inData){debug("***false call");return false}

debug("---------------------------------------------  " + s_inData);
 
	if(qqq){
		debug("f_request : Aborting & Resusing");
		qqq.abort();
	}else{	
		debug("f_request : Creating New xmlHttpRequest Object");
	
		try {qqq = new ActiveXObject("Msxml2.XMLHTTP");} 
		catch (e) {
			try {qqq = new ActiveXObject("Microsoft.XMLHTTP");} 
			catch (e) {qqq = false;}
	 	}
		if (!qqq && typeof qqq !='undefined') {
			try {qqq = new XMLHttpRequest();} 
			catch (e) {qqq=false;}
		}
		if (!qqq && window.createRequest) {
			try {qqq = window.createRequest();} 
			catch (e) {qqq=false;}
		}
	}


	fullPath = "treeIncludes/NDR.asp";
debug("f_request : opening with path : " + fullPath);
	qqq.open("POST",fullPath,true);
debug("f_request : opensuccess");
	qqq.setRequestHeader("Cache-Control", "no-cache");
	//qqq.setRequestHeader("Connection", "close");
	qqq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	
	qqq.onreadystatechange=sendDone;
	qqq.send(s_inData);

debug("f_request : end function");
}

[acoder]

There's no need to call abort() if the call is finished. Only if it's still ongoing, so check if readyState is not 0 before calling abort.