PHP/AJAX Question - (PHP Upload)

[tarun]

I Have A PHP Upload Script

 

 

It Works Fine When Uploading Using A Form

But I Doesn't Work When Creating An AJAX Post

 

 

Why...?

Is What I Would Like To Know

And If Possible How Can I Correct It

 

 

 

I Do Not Which To Display The Contents Of The PHP Script But The AJAX/HTML Is Fine

 

 

<script>
var page = "upload.php";
function postAJAX(url, query, target)
{
    var status = false;
    var contentType = "application/x-www-form-urlencoded; charset=UTF-8";

    // Native XMLHttpRequest object
    if (window.XMLHttpRequest) {
        request = new XMLHttpRequest();
        request.onreadystatechange = function() {ajaxDone(target);};
        request.open("post", url, true);
        request.setRequestHeader("Content-Type", contentType);
        request.send(query);
        status = true;

    // ActiveX XMLHttpRequest object
    } else if (window.ActiveXObject) {
        request = new ActiveXObject("Microsoft.XMLHTTP");
        if (request) {
            request.onreadystatechange = function() {ajaxDone(target);};
            request.open("post", url, true);
            request.setRequestHeader("Content-Type", contentType);
            request.send(query);
            status = true;
        }
    }

    return status;
}



function ajaxDone(target) {
if (request.readyState == 4) {
	if (request.status == 200 || req.status == 304) {
		results = request.responseText;
		document.getElementById(target).innerHTML = results;
		}
		else {           document.getElementById(target).innerHTML="Ajax Error:\n" + req.statusText;
		}
	}
}
</script>