jQuery Forum

the way this code is written you are never using the data returned from your $.get and since no data is sent your ajax is doing nothing but it will repeat every 10 seconds doing nothing but adding one to the counter each time

it's not clear what you are trying to do with this line:
target.text(counter++).data(target, counter);

there is a jquery data() method that stores data in an element which is how it reads the way you have it, I suspect this is not what you are trying to do

You mention json but without a dataType for $.get of "json" there are no clues what you are receiving as data and if it is json you need to either use $.getJSON or declare dataType of $.get

What data is being returned in your request and what exactly are you trying to do with it

can you post sample of json?

I don't see how your data affects your counter so will use example of getting "LastName" from your json

$.getJSON("/LivePeople/getLivePeople", function (data) {
            alert( data.Lastname)

});

EDIT:

if you have more than one result in your json:

$.getJSON("/LivePeople/getLivePeople", function (data) {
          $.each(data, function( i,item){
                  var LastName= item.LastName;
            })

});