Edit in JSFiddle

var name = $.post('/echo/json/', {json:JSON.stringify({'name':"Matt Baker"})});
var lastUpdate = $.post('/echo/json/', {json:JSON.stringify({'lastUpdate':"Hello World"})});

name.done(function (nameData) {
        var name = nameData.name;
        lastUpdate.done(function (lastUpdateData) {
            var lastUpdate = lastUpdateData.lastUpdate;
            $("#render-me").html(name+"'s last update was: "+lastUpdate);
        })
        .fail(function () {
            $("#error").html("an error occured").show();
        });
    })
    .fail(function () {
        $("#error").html("an error occured").show();
    });
    

<div id="render-me"></div>
<div id="error" style="display:none;"></div>