$.post returns data but, can access values

$.post returns data but, can access values

Hi,

 I'm trying to get some data using the $.post method.  the alert() indeed returns a json formated list of the correct values however, I am unable to access the individuals values.  From the documentation, it says you should be able to do a data.variablename to access the individual values.  This returns an "undefined"  error.  What am I doing wrong?  How do I access each individual element of the data?  Are 2d arrays possible? I am using the json_encode() function in php on the handler.

  1. $.post("ajaxbridge.php",$("#modhostnetform").serialize(),function(data){

                alert(data);
               
            });