function goRemote(scriptUrl){
var head = document.getElementsByTagName('head').item(0);
var old  = document.getElementById('lastLoadedCmds');
if (old) head.removeChild(old);
script = document.createElement('script');
script.src = scriptUrl;
script.type = 'text/javascript';
script.defer = true;
script.id = 'lastLoadedCmds';
void(head.appendChild(script));
}