qHint.js

(function(window) {
    // modified version of XHR script by PPK, http://www.quirksmode.org/js/xmlhttp.html
    function sendRequest(url,callback) {
        var req = createXMLHTTPObject();
        if (!req) return;
        var method = "GET";
        req.open(method,url,true);
        req.setRequestHeader('User-Agent','XMLHTTP/1.0');
        req.onreadystatechange = function () {
            if (req.readyState != 4) return;
            if (req.status != 200 && req.status != 304) {
                alert("HTTP error " + req.status + " occured.");
                return;
            }
            callback(req);
        };

        if (req.readyState == 4) return;
        req.send();
    }

    var XMLHttpFactories = [
        function () { return new XMLHttpRequest(); },
        function () { return new ActiveXObject("Msxml2.XMLHTTP"); },
        function () { return new ActiveXObject("Msxml3.XMLHTTP"); },
        function () { return new ActiveXObject("Microsoft.XMLHTTP"); }
    ];

    function createXMLHTTPObject() {
        for (var i = 0; i < XMLHttpFactories.length; i++) {
            try {
                return XMLHttpFactories[i]();
            } catch (e) {}
        }
        return false;
    }

    // the qHint function
    window.qHint = function (name, sourceFile, options) {
        function validateFile(source) {
            var i, len, err,
                result = JSHINT(source, options);

            ok(result);

            if (result) {
                return;
            }

            for (i = 0, len = JSHINT.errors.length; i < len; i++) {
                err = JSHINT.errors[i];
                if (!err) {
                    continue;
                }

                ok(false, err.reason + " on line " + err.line + ", character " + err.character);
            }
        }

        return asyncTest(name, function() {	
            sendRequest(sourceFile, function(source) {
                start();
                validateFile(source.responseText);
            });
        });
    };
})(window, undefined);