PUT Ajax request

I am new to doing Ajax request and have put together the following Pastie. Line 107 is my $.PUT and is throwing an error in firebug that $.PUT does not a function. As for the ajax request I know this is wrong however I am quite lost as to what I need to do inside the success function addCell. Am I going the right way about this?

Edited

function _ajax_request(url, data, callback, type, method) {
    return jQuery.ajax({
        type: 'PUT',
        url: "slot_days/show",
        data: data,
        success: function(data)
        {
callback($.put('/slot_days/show', { '/slot_days/': 'slot_times' }, function(result) 

            {

            });
          )
        }
    });
}

jQuery.extend({
    put: function(url, data, callback, type) {
        return _ajax_request(url, data, callback, type, 'PUT');
}});