The following functions display dialogs in the controlsDiv (upper left)
before loading the PDB file:

askAcceptCookies() in moltab.js

askAFColab() in moltab.js

makeBadBU()
	nonexistentBU() in moltab.js

METHOD

function nonexistentBU()
{
  document.getElementById('controlsDiv').innerHTML = makeBadBU();
  document.getElementById('helpDiv').innerHTML = "";
}