// Cross-browser event handling for IE5+, NS6+ and Mozilla/Gecko
// Originally by Scott Andrew, featured in "Modern Web Design Using Javascript
// & DOM" by Stuart Langridge. Created here by Timbo.
/*--------------------------------------------------------------------------------*/
function addEvent(elm, evType, fn, useCapture)
/*--------------------------------------------------------------------------------*/
{
  if (elm.addEventListener)
  {
    elm.addEventListener(evType, fn, useCapture);
    return true;
  }
  else if (elm.attachEvent)
  {
    var r = elm.attachEvent('on' + evType, fn);
    return r;
  }
  else
  {
    elm['on' + evType] = fn;
  }
}