get any one script

gos.js

var getAnyOneScript = function (scripts) {
    // TODO: http://stackoverflow.com/questions/2027849/how-to-trigger-script-onerror-in-internet-explorer/2032014#2032014
    scripts = scripts instanceof Array ? scripts : [scripts];

    var script = document.createElement('script');
    script.setAttribute('type', 'text/javascript');
    script.setAttribute('src', scripts[0]);
    script.onerror = function () {
        scripts.shift();
        getAnyOneScript(scripts);
    };
    document.body.appendChild(script);
};