get min/max value for live parameter?

I have not figured out a good way to do this yet - but I have not queried all of the properties of the live objects in Javascript - which might include some undocumented methods or properties...

I have some ugly javascript code which is used to convert MIDI CC values to Max UI objects as well as Live objects - it tries to deal with this exact situation, and this is what I am currently doing:

{

        if (obj.understands("rawfloat")) {
            obj.message("rawfloat", val / 127.0);
        }
        else if (obj.maxclass === "live.togle") {
            obj.message("int", val > 63 ? 1 : 0);
        } else {
            var maxclass = obj.maxclass;

            // are we dealing with a live. object
            if (maxclass.indexOf("live.") > -1) {
                obj.message("float", val / 127.0);
            }
            // if not, lets try to find the min/max values so we can scale accordingly
            else {
                var min = obj.getattr("min");
                var range = obj.getattr("size");
                var n = min + ((val / 127.0) * range);
                obj.message("float", n);
            }
        }
}