function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

/*
addLoadEvent(nameOfSomeFunctionToRunOnPageLoad);
addLoadEvent(function() {
  // more code to run on page load
});

Thursday 8 November 2007
http://snippets.dzone.com/posts/show/44
from http://simon.incutio.com/archive/2004/05/26/addLoadEvent
*/