[Greasemonkey] Dynamically loading Prototype

[Rich Manalang]

Hi all.  I've read about the pitfalls with unsafeWindow but I wanted to get
your opinions.  I'd like to dynamically create a script reference to the
prototype.js library on a trusted server to make use of the convenience
functions.  The questions is... is this kosher... should we distributing
scripts that do this?  From what I understand, as long as we avoid passing
GM_* references to unsafeWindow we should be ok, right?

function waitForProto() {
    // waits for the prototype lib to load before continuing with the script
    if (typeof unsafeWindow.Prototype=='undefined')
        window.setTimeout(waitForProto, 1000);
    else
        alert(unsafeWindow.Prototype.Version);
        callMyCode();
}
function loadProto() {
        var proto = document.createElement("script");
        proto.type = "text/javascript";
        proto.src = "http://some.trusted.server/prototype.js";
        document.getElementsByTagName("head")[0].appendChild(proto);
        waitForProto();
}
window.addEventListener("load", loadProto(), false);


Rich Manalang
http://monkegrease.org