Example - get JavaScript countdown using selenium webdriver

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;


public class ExampleJavaScriptcountdown {
public static String before = null;
public static String after = null;
	public static void main(String[] args) {
		WebDriver myTestDriver = new FirefoxDriver();
		myTestDriver.manage().window().maximize();

		myTestDriver.manage().timeouts().implicitlyWait(20,TimeUnit.SECONDS);

		myTestDriver.get("http://tinyurl.com/dxwzzf3");



		while(true){
			after=myTestDriver.findElement(By.xpath("//*[@id='javascript_countdown_time']")).getText();


			if(!after.equals(before)){
				System.out.println(after);
				before=after;

			}

		}

	}

}