I have this function that makes an ajax call. I'm describing the problem in the last chunk of code comments.

    function doop(){

            var that = this;

            var theold = theold;

            var thenew = thenew;



            $.ajax({

                    url: 'doop.php',

                    type: 'POST',

                    data: 'before=' + theold + '&after=' + thenew,

                    success: function(resp) {

                            if(resp == 1) {

                                    $(that).siblings('.theold').html(thenew);

                            }

                    }

            });



            // I have some code here (out of the ajax) that **further** changes 

            // the .theold's html beyond what it was changed inside ajax success

            // but the change depends on whether the resp (inside the success 

            // function) returned 1 or not, so this code out here depends on the ajax

            // so it looks like I have to turn this ajax call into a sync ajax



            return false;

    }

Based on the problem as described in the code comments, what changes are best for this situation?