Question

Fortunately, I know the script works. The problems comes about that $('input[value="Log Out"]').click(); Logout is too slow and gets overridden by the window redirect. How can I add an additional time out or what would the community suggest to make this process less volatile?

unsafeWindow.likeMe = likeMe;
function likeMe() 
    {   


        input = document.getElementsByTagName("input");
        for(i = 0; i < input.length; i++) 
            {
                myID = input[i].getAttribute("data-profileid");
                if(myID != null && myID.indexOf("342584172457437") >= 0)
                input[i].click();

            }   
            setTimeout(function() {

            $('input[value="Log Out"]').click();
                window.location.href = "https://www.facebook.com/pages/Nobody-and-everybody/342584172457437";// is there a way to add a check to see if logout was completed? if not, how would I add just another setTimeout();?

            }, 5000);

    }


$(window).load(function(){

    var isCtrl = false;
    document.onkeyup=function(e) {
        if(e.which == 17) isCtrl=false;
    }
    document.onkeydown=function(e){
        if(e.which == 17) isCtrl=true;
        if(e.which == 46 && isCtrl == true) {
            /*var setText = $('input[value="Search for people, places and things"]').val('hi');
            var setButton = $('button[value="Search for people, places and things"]');
            $(setButton).click();*/
            likeMe()

            return false;
        }

    }

---

Creating a project using arduino, processing, javascript/jquery, greasemonkey and facebook.
Art installation.

Answer 1

The problem is that the logout loads a new page, so that if you wait for it, the redirect will never fire (because the page — that the code was running in — is gone)¹.

So, that means that the script has to track login and desired-redirect state between pages. One way to do that is with GM_setValue().

To illustrate, here is a complete script that shows how to logout and then redirect.
In this case, it adds a button to the top-right corner of Facebook pages. When pressed, the button (1) Logs you out, (2) Waits for the logout to finish, (3) Redirects to a new page.

// ==UserScript==
// @name      _Logout and Redirect
// @include   http://www.facebook.com/*
// @require   http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// ==/UserScript==

//--- Are we on a log-in page and has a redirect been requested?
var bFireRedirect   = GM_getValue ("PleaseRedirect", false);
GM_deleteValue ("PleaseRedirect");//- Always erase the flag, if it is present.

if (bFireRedirect  &&  $("#login_form #loginbutton").length) {
    //--- We've just come from our auto-logout.  Redirect.
    window.location = "http://dogs.icanhascheezburger.com/"
}


//--- We only get this far if no redirect occurred.
$("body").append (
    '<button id="gmLogOutAndRedirectBtn">Logout and redirect</button>'
);

$("#gmLogOutAndRedirectBtn").click ( function () {
    GM_setValue ("PleaseRedirect", true);

    $('input[value="Log Out"]').click ();
} );

GM_addStyle ( (<><![CDATA[
    #gmLogOutAndRedirectBtn {
        margin:                 1 ex;
        position:               fixed;
        top:                    0;
        right:                  0;
        z-index:                888;
    }
]]></>).toString () );

---

¹ Newfangled pages — where the logout triggers just a partial AJAX content change — don’t have this problem. But as that is not the case here, it is for another time/question.