/**
 * Adds an Event listener for the window.onload event.
 *
 * @param			func			The Event listener Function
 */
function addLoadEvent(func) {
  var oldonload = window.onload;

  if (typeof window.onload != "function") {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    } // window.onload
  } // if - else
} // addLoadEvent