Userscripts.org

I think your getQueryVariable function can be replaced with mine, it's quicker and one line:

String.prototype.getPref = function(s, splitter) {
return this.split(s+"=")[1].split((splitter||"&"))[0];
};

var url = window.location.href,
    whos = url.getPref('v_user_id'),
    vix = url.getPref('idx'),
    vidid = url.getPref('v'),
    clid = url.getPref('cl');