// Courtesy http://www.xml.com/cs/user/view/cs_msg/2815
// threadsafe asynchronous XMLHTTPRequest code
function handleResponse(response) {
var sepInd = response.indexOf('|', 0);
if(sepInd != -1) {
updateDiv = response.substring(0, sepInd);
updateCont = response.substring(sepInd + 1);
//update = response.split('|');
document.getElementById(updateDiv).innerHTML = 'Done';
}
}


function ajaxSend(url, callback){
// we use a javascript feature here called "inner functions"
// using these means the local variables retain their values after the outer function
// has returned. this is useful for thread safety, so
// reassigning the onreadystatechange function doesn't stomp over earlier requests.


function ajaxBindCallback() {
if (ajaxRequest.readyState == 4) {
if (ajaxCallback) {
ajaxCallback(ajaxRequest.responseText);
}
else {
alert('no callback defined');
}
}
}


// use a local variable to hold our request and callback until the inner function is called...
var ajaxRequest = null;
var ajaxCallback = callback;



// bind our callback then hit the server...
if (window.XMLHttpRequest) {
// moz et al
ajaxRequest = new XMLHttpRequest();
ajaxRequest.onreadystatechange = ajaxBindCallback;
ajaxRequest.open("GET", url, true);
ajaxRequest.send(null);
}
else
if (window.ActiveXObject) {
// ie
ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
if (ajaxRequest) {
ajaxRequest.onreadystatechange = ajaxBindCallback;
ajaxRequest.open("GET", url, true);
ajaxRequest.send();
}
}
}