var http_request = false;
var url = "";
function makeRequest(url) {
	//alert(url);
	http_request = false;
	if (window.XMLHttpRequest) { // Mozilla, Safari,...
        http_request = new XMLHttpRequest();
        if (http_request.overrideMimeType) {
            http_request.overrideMimeType('text/xml');
        }
    } else if (window.ActiveXObject) { // IE
        try {
            http_request = new ActiveXObject("Msxml2.XMLHTTP");
        } catch (e) {
            try {
            http_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
        }
    }
    if (!http_request) {
        alert('Giving up :( Cannot create an XMLHTTP instance');
        return false;
    }
    http_request.onreadystatechange = showContents;
    http_request.open('GET', url, true);
    http_request.send(null);
}

function showContents() {
	if (http_request.readyState == 4) {
		if (http_request.status == 200) {
	    	document.getElementById('q_result').innerHTML = http_request.responseText;
		} else {
	    	alert('There was a problem with the request.');
	    }
	}
}