[jQuery] accessing 'caller' object within post

[jQuery] accessing 'caller' object within post


hi all,
i'm having troubles accessing the 'caller object of an ajax post
for instance
function A ()
{
this.avar;
}
A.prototype.myFun = function()
{
this.avar; // no problem here
$.post(url,data,callback)
{
this.avar; // here is the problem (a)
}
}
a = new A;
---------
(a) can't access to 'this' obviously, any idea how i can do that
without using 'global' variables
ps: i think i post a message before i finished a little while ago ..
sorry about that =x