function formSubmit() {
  var URL = 'bingo/';
  URL += 'startSession.php?';

  URL += '&rn=';
  URL += document.getElementById("rowNum").options[document.getElementById("rowNum").selectedIndex].text;
  URL += '&ln=';
  URL += document.getElementById("colNum").options[document.getElementById("colNum").selectedIndex].text;

  var winops = 'width=650,resizable,address=no,menubar=no,scrollbars=yes,statusbar=no';
  var newwin;
  newwin = window.open(URL,'',winops);

  return false;
}

function getTotal() { //calculates the total words allowed on 1 bingo card (based on number of rows and columns)
  var rowNum = document.getElementById("rowNum").options[document.getElementById("rowNum").selectedIndex].text;
  var colNum = document.getElementById("colNum").options[document.getElementById("colNum").selectedIndex].text;

  document.getElementById("totalWords").value = colNum * rowNum;
}