function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
	window.onload = func;
	//alert("onload no function");
  } else {
	//alert("onload is function");
	window.onload = function() {
	  if (oldonload) {
		oldonload();
	  }
	  func();
	}
  }
}