[jQuery] Modify how name:value pairs are converted in the URL

[acedanger]

Whenever execute the following code, the URL that is formed has "?"
before my name and an "=" before my value (so the URL would be "http://
url/?acct=123"). I need the URL formatted so that a "+" is in front of
the name and a ":" (colon) to be before the value (i.e. formatted like
"http://url/+acct:123";). Is there a way to change this behavior?

$.ajax({
                url: lansaUrl('proc', 'func'),
                global: true,
                cache: false,
                type: "GET",
                data: ({"acct": object.value}),
                dataType: "json",
                success: function(result){
                        $("p#customerInfo").innerHTML += " "+result;
                },
                error: function(xhr, desc, exceptionobj) {
                        alert(xhr.responseText);
                }
        });