Selenium wbdrvr= new WebDriverBackedSelenium(webdriver object name, "URl path of website").
import org.openqa.selenium.WebDriverBackedSelenium;
import org.openqa.selenium.firefox.FirefoxDriver;
import com.thoughtworks.selenium.Selenium;
public class Webdriver_Reg {
public static FirefoxDriver driver=new FirefoxDriver();
public static void reg()
{
// Creating webdriver backed selenium object
// Clicking on the link register now
driver.findElement(By.cssSelector("input.registernow")).click();
// entering some values to the user name text box using web driver object.
driver.findElement(By.id("fname")).sendKeys("harish");
//selecting value '5' for the day in Date of birth using selenium commands with webdriver backed selenium object.
selenium.select("day", "5");
////selecting value "Jun" for the month in Date of birth using selenium commands with webdriver backed selenium object.
selenium.select("month", "Jun");
Hope this is helpful to you.