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

function showInfoWindow(url) {
	try {
		var infoWindow = window.open(url, "info", "width=800,height=200,left=99,top=407");
		infoWindow.focus();
	} catch(err) {
	}
	return true;
}