// This script is from 'DOM Scripting', by Jeremy Keith ISBN 1-59059-533-5
// buy this book!
function addLoadEvent( func )
 {
 var oldonload = window.onload;
 if ( typeof window.onload != 'function' )
  {
  window.onload = func;
  }
  else
  {
  window.onload = function()
   {
   oldonload();
   func();
   }
  }
 }