JavaScript - Reference Browser Window by name? [duplicate]

Answer 1

I ended up using the following:

var newwindows = {};
function popitup(url, nm) {
  if ((newwindows[nm] == null) || (newwindows[nm].closed)) {
    newwindows[nm] = window.open(url, nm, 'width=1200,height=650,scrollbars=yes,resizable=yes');
  }
  newwindows[nm].focus();
}

then referenced using:

     New