Am trying to msg a frnd via fb messenger...Am facing issues

Following is my code sir//
Pls enter respective email id /pwd & respective frnd name:

[b:lmc92set]Issue :[/b:lmc92set] [b:lmc92set]Am unable to type text in fb text box......[/b:lmc92set]

package p1;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.Dimension;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.interactions.Actions;

public class Names {

public static void main(String[] args) {
// TODO Auto-generated method stub



WebDriver w= new FirefoxDriver();
w.get("https://www.facebook.com/");

w.manage().timeouts().pageLoadTimeout(30, TimeUnit.MILLISECONDS);
w.findElement(By.name("email")).sendKeys("sonso@gmail.com");//-----------ur email
w.findElement(By.name("pass")).sendKeys("urpwd");//-----------ur pwd
w.findElement(By.id("loginbutton")).sendKeys(Keys.ENTER);

//----Login done---------------------------------
w.manage().timeouts().pageLoadTimeout(500, TimeUnit.MILLISECONDS);
/*int size = w.findElements(By.tagName("iframe")).size();
try{
w.findElement(By.xpath("html/body/div[1]/div[1]/div/div[1]/div/div/div/div[2]/div[2]/div[3]/div/a/div")).click();
}
catch(Exception e)
{
//e.printStackTrace();
}
w.manage().timeouts().pageLoadTimeout(600, TimeUnit.MILLISECONDS);
//w.findElement(By.xpath("//a[@class='jewelButton']/div")).click();
try{
w.findElement(By.linkText("Messages")).click();
}
catch(Exception e)
{
//e.printStackTrace();
}
w.manage().timeouts().pageLoadTimeout(600, TimeUnit.MILLISECONDS);
w.manage().window().maximize();
w.switchTo().frame(0);
w.switchTo().defaultContent();
w.manage().timeouts().pageLoadTimeout(600, TimeUnit.MILLISECONDS);
WebElement ToText=w.findElement(By.xpath("//div[@class='squareProfile']/div[2]/span/label/input"));
ToText.click();
ToText.sendKeys("Kiran Srivatsa");
w.findElement(By.xpath("//div[@class='squareProfile']/div[2]/span/label/input")).sendKeys(Keys.ENTER);
w.manage().timeouts().pageLoadTimeout(600, TimeUnit.MILLISECONDS);

//-----------chat wid a frnd
HashSet <String>IDs=new HashSet<String>();
IDs=(HashSet<String>) w.getWindowHandles();
System.out.println("size of haeshset"+IDs.size());
//w.switchTo().frame(0);
//w.findElement(By.xpath("//div[@title='Type a message...']/div/div/div")).sendKeys("hiii");
System.out.println(w.findElement(By.xpath("//div[@class='fbNubFlyoutFooter']/div/div[1]")).getText());
WebElement ChatFrnd=w.findElement(By.xpath("//div[@class='fbNubFlyoutFooter']/div/div[1]"));
//ChatFrnd.click();
ChatFrnd.sendKeys("kkkkkk");
ChatFrnd.sendKeys(Keys.ENTER);
}