Jquery serialize() not working on my website

I wrote a function in jquery and it works perfectly on localhost with the same setting

$('#resumey_graduation_add').live("cl开发者_如何学编程ick",function(){

    var dataString=$('#job_form').serialize();

    $.ajax({
        type: 'GET',
        url: 'app.php?name=job&op=resumey_graduation_add',
        data: dataString,
        cache: false,
        beforeSend: function() {
            $("#resumey_graduation_showall").html("<img src='images/loading.gif' />");
        },
        success: function(data2) {
            $("#resumey_graduation_showall").html(data2);
        }
    });
    return false;
});

but when moving it on my host , its not working and failed to load the data .

loading shows but not the result !

jquery versions are all tested and none of them worked

is there anything wrong , for expample not having JSON enabled or these things that are related to serialize() in jquery ?!

---

Since you are doing 
type= get ,  data= $('#job_form').serialize(), url=Someurl.php?a=b&c=d

your url must be getting converted to Someurl.php?a=b&c=d&props_from_form(name value pairs)

Do this way

$.ajax({
        type: 'POST',
  other things ....

sending form through GET may result in very big urls and that may get ignored by server.