i use this function to return the response of post:

$.sendpost = function(){
    return jQuery.post('inc/operations.php', {'operation':'test'}, "json");
},

i want to make something like this:

in:

$.another = function(){
  var sendpost = $.sendpost();
  alert(sendpost);
}

but i get: [object XMLHttpRequest]

if i print the object with:

jQuery.each(sendpost, function(i, val) {
  $(".displaydetails").append(i + " => " + val + "<br/>");
});

i get:

details  abort => function () { x && h.call(x); g("abort"); }
dispatchEvent => function dispatchEvent() { [native code] }
removeEventListener => function removeEventListener() { [native code] }
open => function open() { [native code] }
setRequestHeader => function setRequestHeader() { [native code] }
onreadystatechange => [xpconnect wrapped nsIDOMEventListener]
send => function send() { [native code] }
readyState => 4
status => 200
getResponseHeader => function getResponseHeader() { [native code] }
responseText => mdaaa from php

how to return only the response in the variable?