// addLoadEvent is an event handler, allowing you to register functions to run when page finishes loading
// from Simon Willison's code: http://simon.incutio.com/archive/2004/05/26/addLoadEvent

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