Basic Ajax Routine Help

[CoDE]

1) Script Title: Basic Ajax Routine

2) Script URL (on DD): http://www.dynamicdrive.com/dynamici...jaxroutine.htm

3) Describe problem: Need to modify processGetPost function to return the results of the post, but can't get it working.

When the function is executed, I want it to return the results to the calling function, so I've modified it as follows:

function processGetPost(){
	var myajax=ajaxpack.ajaxobj
	var myfiletype=ajaxpack.filetype
	if (myajax.readyState == 4){ //if request of file completed
		if (myajax.status==200 || window.location.href.indexOf("http")==-1){ //if request was successful or running script locally
			if (myfiletype=="txt")
				// myresponse = myajax.responseText;
				return(myajax.responseText);
			else
				return(myajax.responseXML);
		}
		else
			alert("Couldn't get file.");
	}
}

And then in another function I call that function like this:

var myContent = ajaxpack.getAjaxRequest("getHelpContent.asp", "NavID=" + nav_id, processGetPost, "txt");
alert(myContent);

The alert aways returns "undefined", though, and I just can't figure out what I'm doing wrong (something painfully simple, I'm sure).

Could somebody please shed some light on this?

Thanks in advance!

--Jon