I am new to android. I am using webview inside tabview. In my app in first activity facebook button available.when click facebook button connect to facebook in second activity inside tabs fine.In second activity i am using webview. this is the code.

public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.facebook);

    wvFacebook=(WebView)findViewById(R.id.webview);
    btnBack=(Button)findViewById(R.id.back);
    txtBarname=(TextView)findViewById(R.id.barnameheader);
    if(check==1){
        strFacebook=MyBarsActivity.strFacebook;
        Log.e("Facebook url",strFacebook);
        strBarName=MyBarsActivity.strBarName;
    }
    wvFacebook.setWebViewClient(new MyWebViewClient());
    wvFacebook.loadUrl(strFacebook);
}
private class MyWebViewClient extends WebViewClient {            
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
         view.getSettings().setJavaScriptEnabled(true);
         view.loadUrl(url);
         return true;
     }
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        super.onPageStarted(view, url, favicon);
    //  progressDialog.show(getParent(), "In progress", "Loading, please wait...");
    }

    public void onPageFinished(WebView view, String url) {
        super.onPageFinished(view, url);
    }

But my problem is when i click connect button facebook page will be displayed well inside tabs.But when i click emial or username and password button it is not responding.Why it is not responding please help me regarding this.thanks in advance.