/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is VisKort.
*
* The Initial Developer of the Original Code is
* IT- og Telestyrelsen / Danish National IT and Telecom Agency.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Sriharsha Ranganath
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */

/** 
* Patch for the error on XMLHttpRequest send method
* which occurs when the vData sent is null/undefined
*/
var bGecko = !!window.controllers;
OpenLayers.Request.XMLHttpRequest.prototype.send = function (vData) {
    if (OpenLayers.Request.XMLHttpRequest.onsend)
        OpenLayers.Request.XMLHttpRequest.onsend.apply(this, arguments); if (vData && vData.nodeType) {
        vData = window.XMLSerializer ? new window.XMLSerializer().serializeToString(vData) : vData.xml; if (!this._headers["Content-Type"])
            this._object.setRequestHeader("Content-Type", "application/xml");
    }
    try {
        this._object.send(vData);
    } catch (e) { }
    if (bGecko && !this._async) {
        this.readyState = OpenLayers.Request.XMLHttpRequest.OPENED; fSynchronizeValues(this); while (this.readyState < OpenLayers.Request.XMLHttpRequest.DONE) {
            this.readyState++; fReadyStateChange(this); if (this._aborted)
                return;
        }
    }
}