jQuery Memory Leak Suspicion

Question

I am making an AJAX request for XML. I am doing this every second. I notice that my memory usage grows into the hundreds of megabytes. As you might imagine, the customer is

Answer 1

I'm just going to throw my two cents in but i agree jAndy (+1). However, I would generate a single bound callback once, rather than creating a new closure on ever iteration of the callback (which in theory could keep the scope and the xml data alive for a lot longer than you want. I would suggest another alternative like this:

function PageManager () {
    var callback  = (function(self) { 
        return function() { self.timeoutHandler(); };
    })(this); // only one callback

    this.timeoutHandler = function () {
        $.ajax ({
            url: '/echo/json/',
            type: 'post',
            cache: false,
            data: {a:Math.random() },
            success: function (data) {
                //var xmlDoc = $($.parseXML (data));
                // Processing of XML
                //alert("data");
                setTimeout (callback, 750);
            }
        });
    };
}

var pm = new PageManager ();
pm.timeoutHandler();

Edit

Here is a jsFiddle with the above code, and I watched the memory management for a little while, but not nearly enough to be conclusive in any sense.