title: Page scroll up or down in Selenium WebDriver (Selenium 2) using java
body: <p>I have written the following code in Selenium 1 (a.k.a Selenium RC) for page scrolling using java:</p>
  
  <pre><code>selenium.getEval("scrollBy(0, 250)");
  </code></pre>
  
  <p>What is the equivalent code in Selenium 2 (WebDriver)?</p>