Extra http methods for jQuery based on X-HTTP-Method-Override header.

jquery.http.js

  function _ajax_request(url, data, callback, type, method) {
    if (jQuery.isFunction(data)) {
        callback = data;
        data = {};
    }
    return jQuery.ajax({
        type: "POST",
        url: url,
        data: data,
        success: callback,
        dataType: type,
        headers: {
          "X-HTTP-Method-Override": method
        }
    });
  }

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

    delete_: function(url, data, callback, type) {
        return _ajax_request(url, data, callback, type, 'DELETE');
    }
  });

  $(document).ready(function() {
    $.delete_("url", {}, function(data) {
      alert(data)
    }).error(defaultErrorHandler)
  })