Facebook JS news feed stuff

javascript:(function()
{
    function creator(e,t,n)
    {
        var r=document.createElement(n);
        var i=document.createTextNode(t);
        r.appendChild(i);
        e.appendChild(r)
    }
    function displayData(e)
    {
        var t=document.createElement("table");
        var n=document.createElement("thead");
        t.appendChild(n);
        var r=document.createElement("tr");
        creator(r,"Name","th");
        creator(r,"Score","th");
        n.appendChild(r);
        var s=document.createElement("tbody");
        t.appendChild(s);
        for(i=0; i<e.length; i++)
        {
            var r=document.createElement("tr");
            creator(r,e[i]["text"],"td");
            creator(r,e[i]["grammar_costs"]["{user}"],"td");
            s.appendChild(r)
        }
        document.body.innerHTML="";
        document.body.appendChild(t)
    }
    id=requireDynamic("Env").user;
    url="//www.facebook.com/ajax/typeahead/search/facebar/bootstrap/?viewer="+id+"&__a=1";
    x=new XMLHttpRequest;
    x.onreadystatechange=function()
    {
        if(x.readyState==4&&x.status==200)
        {
            srr=JSON.parse(x.responseText.substring(9)).payload.entries;
            displayData(srr)
        }
    };
    x.open("GET",url,true);
    x.send()
})()