// ==UserScript==
// @name          WebOffice Login for Google Chrome
// @version       0.0.2
// @namespace     https://gist.github.com/3736189
// @description   Makes WebOffice to be worked on Google Chrome.
// @match         http://hr.weboffice.co.kr/main/jsp/login.jsp
// @match         http://hr.weboffice.co.kr/tam/tm_attend/tm_attend*
// @copyright     2012, Heungsub Lee <sub@nexon.co.kr>
// @license       Public Domain
// ==/UserScript==

var fn = function() {
  // patch XSheet parser
  var _makeXSheetWithXmlText = window.makeXSheetWithXmlText;
  window.makeXSheetWithXmlText = function(xmlText, mode) {
    var try_these = Try.these;
    Try.these = function() {
      var xdom = {};
      xdom.loadXML = function(xml) {
        this.__proto__ = (new DOMParser()).parseFromString(xml, 'text/xml');
        window.xdom = this;
        if (this.documentElement.nodeName == 'parsererror') {
          this.parseError = {errorCode: 1};
        } else {
          this.parseError = {errorCode: 0};
        }
      };
      return xdom;
    };
    var result = _makeXSheetWithXmlText(xmlText, mode);
    Try.these = try_these;
    return result;
  };
  // methods for XmlSheet, XMLDocument
  XmlSheet.prototype.EtcData = function(key) {
    var etcs = this.xdom.documentElement.getElementsByTagName('ETC');
    var result = null;
    $A(etcs).each(function(e) {
      if (e.getAttribute('KEY') == key) {
        result = e.childNodes[0].data;
        return false;
      }
    });
    return result;
  };
  XMLDocument.prototype.selectNodes = function(xpath) {
    var result = document.evaluate(xpath, this.documentElement, null,
                                   XPathResult.ORDERED_NODE_SNAPSHOT_TYPE);
    var nodes = [];
    for (var i = 0; i < result.snapshotLength; ++i) {
      nodes.push(result.snapshotItem(i));
    }
    return nodes;
  };
  XMLDocument.prototype.selectSingleNode = function(xpath) {
    var nodes = this.selectNodes(xpath);
    if (nodes.length) {
      return nodes[0];
    }
    return null;
  };
  // run InitPage again
  document.forms[0].document = document.forms[0];
  InitPage();
};

var e = document.createElement('script');
e.innerHTML = '(' + fn.toString() + ')();';
var scripts = document.head.getElementsByTagName('script');
var target = scripts[scripts.length - 1];
target.parentNode.insertBefore(e, target);