Facebook Like and Logout -

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i pretty new stackoverflow , coding i'll try best make question clear , simple possible:

i'm looking create webpage have facebook button , logout button sign user out of facebook account...so user can facebook like, enter login info, logout. here script have far have refresh in order logout work , direct main page. many help:

interactive link: http://jsfiddle.net/nrdnx/11/

code:

<html>     <head>       <title>my great web page</title>     </head>     <body> <div id="fb-root"></div>  <script> window.fbasyncinit = function() {     fb.init({       appid      : '271358172932770', // app id       status     : true, // check login status       cookie     : true, // enable cookies allow server access session       xfbml      : true  // parse xfbml     });      // additional initialization code here     getstatus();   };    // load sdk asynchronously   (function(d){      var js, id = 'facebook-jssdk', ref = d.getelementsbytagname('script')[0];      if (d.getelementbyid(id)) {return;}      js = d.createelement('script'); js.id = id; js.async = true;      js.src = "//connect.facebook.net/en_us/all.js";      ref.parentnode.insertbefore(js, ref);    }(document));   </script>    </script>         <iframe src="http://www.facebook.com/plugins/like.php?href=www.facebook.com/orangeleaflawrence"         scrolling="no" frameborder="0"         style="border:none; width:450px; height:80px"></iframe>  <a href="javascript:void();" onclick="getstatus()">get status</a>   <div id="logout"><a href="logout.html">logout of facebook</a></div>   <script>  fb.event.subscribe('auth.authresponsechange', function(response) {   alert('the status of session is: ' + response.status); });     function getstatus(){  fb.getloginstatus(function (response) {   alert(response.status);   if (response.status === 'connected') {        document.getelementbyid('logout').style.display='';     // user logged in , has authenticated     // app, , response.authresponse supplies     // user's id, valid access token, signed     // request, , time access token      // , signed request each expire   } else if (response.status === 'not_authorized') {     document.getelementbyid('logout').style.display='none';     // user logged in facebook,      // has not authenticated app   } else {      // user isn't logged in facebook.        document.getelementbyid('logout').style.display='none';   }  } );  }       </script>   </body>  </html>

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i'm not sure i'm quite getting problem is, logout sdk function here : http://developers.facebook.com/docs/reference/javascript/fb.logout/


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