javascript prompt with a dropdown menu

Below is my code page: What I want to do is, have the prompt show a dropdown of values they can select from, instead of having the user enter any text.

Thanks

(function(){
  var dbid = "bnt8grwvt";
  var dbidTable = dbid;
  var apptoken = "mytoken";
  $.ajaxSetup({data: {apptoken: apptoken}});
  var description= prompt("Enter a brief description of the work done in this session: ", "");
  if (description == null || description == "")  {
  alert("You did not enter a description I will cancel this Time Out.");
  Return;
}
  var promise = $.get(dbidTable, {
    act: "API_EditRecord",
    rid: QBU_rid,
   _fid_7: "Active",
   // _fid_6: "Out"
  }).then(function(xml) {
    console.dirxml(xml);
 $.get() & location.reload(true);
  });
})();