Get Working RGB/CMYK in Illustrator with ExtendScript without Open Doc

Is there a way to get the working CMYK and RGB profile names in Adobe Illustator with ExtendScript without relying on an open docuement so that I don’t have to see the window flashing?

Below is the best I could come up with:
 

function getProfile(targetMode) {

    if (targetMode !== "RGB" && targetMode !== "CMYK") {
        targetMode = "CMYK";
    }

    var originalDoc = null;

    if (app.documents.length > 0) {
        originalDoc = app.activeDocument;
    }

    if (originalDoc) {

        if (
            (targetMode === "RGB" && originalDoc.documentColorSpace === DocumentColorSpace.RGB) ||
            (targetMode === "CMYK" && originalDoc.documentColorSpace === DocumentColorSpace.CMYK)
        ) {
            return originalDoc.colorProfileName;
        }
    }

    var docColorSpace = (targetMode === "CMYK")
        ? DocumentColorSpace.CMYK
        : DocumentColorSpace.RGB;

    var tempDoc = app.documents.add(docColorSpace, 1, 1);

    var profile = tempDoc.colorProfileName;

    if (originalDoc) {
        originalDoc.activate();
    }

    tempDoc.close(SaveOptions.DONOTSAVECHANGES);

    return profile;
}

var profileRGB = getProfile("RGB");
var profileCMYK = getProfile("CMYK");
alert("\nRGB Profile:\n" + profileRGB + "\n\nCMYK Profile:\n" + profileCMYK);