+ post: function ( params, data, callback )
+ {
+ this._send( 'POST', params, data, callback );
+ },
+
+ load: function ()
+ {
+ this.async = false;
+ this.request.open( 'GET', this.url, this.async );
+ this.request.send('');
+ if ( this.request.status == 200 )
+ return this.request.responseXML;
+ },
+
+ _send: function ( type, params, data, callback )
+ {
+ this.callback = callback;