/*
Title: addLoadEvent
Description: Allow Multiple window.onload Events from any number of scripts.
Browser Compatibility: IE 5, 5.5 and 6 for Windows; IE 5 and Safari for Mac; Opera 7.5 and FireFox
Author: Simon Willison
WebPage: http://simon.incutio.com/archive/2004/05/26/addLoadEvent

Usage:
addLoadEvent(nameOfSomeFunctionToRunOnPageLoad);
addLoadEvent(function() {
	more code to run on page load
});
*/ 
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}