Returning Multiple Values Using XMLHTTP Object?

I'm just starting to try out "Ajax" web programming and I've got a question.

AJAX is fairly straightforward. Javascript creates an XMLHttp object and
then uses that to generate a hidden webpage with your results.

What I'd like to know is, how can I retrieve multiple values from an XMLHttp
request?For example, if my request generated an SQL query that returned a
Name, Address and PhoneNumber, could I get those values directly instead of
parsing them out of the ResponseText?

This is my current handler:

function showResult(pge) {
var url="getResult.asp?sid=" + Math.random() + "&q=" + pge
xmlHttp=GetXmlHttpObject(stateChanged)
xmlHttp.open("GET", url , true)
xmlHttp.send(null)
}

function stateChanged() {
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete") {
//Complete, so show results.
document.getElementById("myResult").innerHTML=xmlHttp.responseText;
//How to get mulitple values here?
}
}