_path = function(dir, file, type, nomin) {
        var path = dir + '/' + file;
        if (!nomin) {
            path += '-min';
        }
        path += '.' + (type || CSS);

        return path;
    }
Loader dynamically loads script and css files.  It includes the dependency
information for the version of the library in use, and will automatically pull in
dependencies for the modules requested. It can also load the
files from the Yahoo! CDN, and it can utilize the combo service provided on
this network to reduce the number of http connections required to download
YUI files.

@module loader
@main loader
@submodule loader-base