function delayAction($action, $delay=5, $frequency=1, $confirm=FALSE)
{
	ob_implicit_flush(TRUE);

	
	for($i = 0; $i < $delay; $i++)
	{
		// Important! Style boxes and make sure the z-index rises with each call. Also set a background-color so that underlying layer is covered.
		$countdown_pat = "<div style=\"position:absolute;z-index:".$i.";background:#FFF;\">%s</div>";
		$confirm_pat = "<div style=\"position:absolute;z-index:".$i.";background:#FFF;\"><h2>Really? <a href=\"%s\">Confirm</a> / <a href=\"%s\">Undo</a></h2></div>";
		$redirect_pat = "<meta HTTP-EQUIV=\"REFRESH\" content=\"0; url=%s\">";
		
		// "Pulsate" until delay is reached. Then perform action.
		if($i < $delay-1)
		{
			// Display countdown
			printf($countdown_pat, date('h:i:s'));
			
			// "Pulsate"
			sleep($frequency);
		}else{
			if($confirm == FALSE)
			{
				// Redirect
				printf($redirect_pat, $action);
			}else{
				// Display confirmation-link
				printf($confirm_pat, $action, $_SERVER['PHP_SELF']);
			}
		}
		
	}
}

// Test
$frequency = 1; // Set "pulse" in seconds
$delay = 5; // Set delay + 1 in seconds
$action = "http://boldeagle.org"; // Set action. (Here I'm setting the location for a meta-refresh/link)

// Execute with custom settings (with confirmation-link)
delayAction($action, $delay, $frequency, 1);

// Execute with default settings (without confirmation-link)
//delayAction($action);