Sys._ScriptLoader.getInstance()._loadScriptsInternal = function() {
    if (this._scriptsToLoad && this._scriptsToLoad.length > 0) {
        var nextScript = Array.dequeue(this._scriptsToLoad);
        var scriptElement = this._createScriptElement(nextScript);
        
        if (scriptElement.text && Sys.Browser.agent === Sys.Browser.Safari) {
            scriptElement.innerHTML = scriptElement.text;
            delete scriptElement.text;
        }            

        if (typeof(nextScript.src) === "string") {
            this._currentTask = new Sys._ScriptLoaderTask(scriptElement, this._scriptLoadedDelegate);
            this._currentTask.execute();
        }
        else {
            document.getElementsByTagName('HEAD')[0].appendChild(scriptElement);
            Sys._ScriptLoader._clearScript(scriptElement);
            this._loadScriptsInternal();
        }
    }
    else {
        var callback = this._allScriptsLoadedCallback;
        this._stopLoading();
        if(callback) {
            callback(this);
        }
    }
}