function openWindow(url,ww,wh) {
  var windowName = "infoPopup";
  var w = screen.width;
  var h = screen.height;
  var x = (w/2) - (ww/2);
  var y = (h/2) - (wh/2);
  settings = "scrollbars=yes,toolbar = no,location=no,directories=no,status=no,menubar=no,width=" + ww + ",height=" + wh +",top=" + y + ",left="+ x;
  newWindow = window.open(url, windowName, settings);
  newWindow.focus();
}

function notImplementedYet() {
  alert("This bit hasn't been written yet.\n\nTry clicking on something else.");
}

function confirmation(message,url) {
  if(confirm('Are you sure you wish to delete this ' + message +'?'))
    window.location=url;
}