// Script code Copyright MyRo 1999-2009
var GetObjectByRef = null;

function errorHandler(message, url, line)
{
   window.alert ("Een fout gebeurde: " + message + "\n op de lijn:" +  line + "\n in: " + url);
   // stop the event from bubbling up to the default window.onerror handler
   return true;
}

// install the global error-handler
window.onerror = errorHandler;

OS_UNKNOWN = 0;
OS_LINUX = 1;
OS_UBUNTU = 2;
OS_MAC = 3;
OS_WINDOWS = 4;

BROWSER_UNKNOWN = 0;
BROWSER_IE = 1;
BROWSER_NS = 2;
BROWSER_KONQUEROR = 3;
BROWSER_OPERA = 4;
BROWSER_FF = 5;
BROWSER_SAFARI = 6;
BROWSER_CHROME = 7;

function BV_checkBrowser (key, browser)
{
  var pos;
  pos = this.agent.indexOf (key);
  if (pos >= 0)
  {
    this.version = Math.floor (parseFloat (this.agent.substr (pos + key.length)) * 100);
    this.browser = browser;
    return true;
  }
  return false;
}
function BV_checkVersion (key)
{
  var pos;
  pos = this.agent.indexOf (key);
  if (pos >= 0)
  {
    return Math.floor (parseFloat (this.agent.substr (pos + key.length)) * 100);
  }
  return -1;
}
function BV_checkOS (key, os)
{
  var pos;
  pos = this.agent.indexOf (key);
  if (pos >= 0)
  {
    this.os = os;
    return true;
  }
  return false;
}
function BV_checkProperty (key)
{
  return this.agent.indexOf (key) >= 0;
}
function BV_getVersion (browser)
{
  if (this.browser == browser)
   return this.version;
  return -1;
}

function CBrowserVersion()
{
  this.checkBrowser = BV_checkBrowser;
  this.checkVersion = BV_checkVersion;
  this.checkOS = BV_checkOS;
  this.checkProperty = BV_checkProperty;
  this.getVersion = BV_getVersion;

  this.ver = navigator.appVersion;
  this.agent = navigator.userAgent.toLowerCase();

  if (!(this.checkOS ('ubuntu', OS_UBUNTU) || this.checkOS ('mac', OS_MAC) || this.checkOS ('linux', OS_LINUX) || this.checkOS ('windows', OS_WINDOWS)))
    this.os = OS_UNKNOWN;

  if (!(this.checkBrowser ('opera/', BROWSER_OPERA) ||
        this.checkBrowser ('msie ', BROWSER_IE) ||
        this.checkBrowser ('navigator/', BROWSER_NS) ||
        this.checkBrowser ('netscape/', BROWSER_NS) ||
        this.checkBrowser ('firefox/', BROWSER_FF) ||
        this.checkBrowser ('konqueror', BROWSER_KONQUEROR) ||
        this.checkBrowser ('safari', BROWSER_SAFARI) ||
        this.checkBrowser ('chrome/', BROWSER_CHROME) ||
        this.checkBrowser ('mozilla/', BROWSER_NS)
     ))
    this.browser = BROWSER_UNKNOWN;
  this.mozilla = this.checkVersion ('mozilla/');
  this.gecko = this.checkProperty ('gecko');
  this.webkit = this.checkVersion ('applewebkit/');

  this.dom = document.getElementById?1:0;
  this.usedom = this.getVersion (BROWSER_NS) >= 600;
  this.reuse = this.getVersion (BROWSER_IE) >= 400 || this.usedom;//Reuse layers
  this.useDhtml = (this.getVersion (BROWSER_IE) > 300) || (this.getVersion (BROWSER_NS) > 600) || this.mozilla >= 500 || (BROWSER_KONQUEROR <= this.browser && this.browser <= BROWSER_CHROME) || this.webkit > 0;
  this.useLayer = this.getVersion (BROWSER_NS) == 400;
  this.supportError = this.getVersion (BROWSER_IE) >= 500 || this.getVersion (BROWSER_NS) >= 600;

  if (document.getElementById)
    GetObjectByRef = function (nm) {return document.getElementById (nm);};
  else if (document.all)
    GetObjectByRef = function (nm) {return window.document.all [nm];};
  else if (document.layers)
    GetObjectByRef = function (nm) {return document.layers [nm];};
  else
    GetObjectByRef = null;

  if (document.getElementsByName)
    GetElementsByName = function (nm) {return document.getElementsByName (nm);};
  else
    GetElementsByName = NULL;

  if (document.getElementsByTagName)
    GetElementsByTagName = function (nm) {return document.getElementsByTagName (nm);};
  else
    GetElementsByTagName = NULL;

  if (this.browser == BROWSER_IE && (this.version < 500 && this.version >= 400))
    GetParentNode = function(obj) {return obj ? obj.parentElement : NULL;};
  else
    GetParentNode = function (obj) {return obj ? obj.parentNode : NULL;};

  if (this.browser == BROWSER_IE)
    HasAttribute = function (obj, attr) {return attr in obj;};
  else
    HasAttribute = function (obj, attr) {return obj.hasAttribute (attr);};

  if (this.browser == BROWSER_IE)
    GetAttribute = function (obj, attr) {return obj [attr];};
  else
    GetAttribute = function (obj, attr) {return obj.getAttribute (attr);};

  if (this.browser == BROWSER_IE)
    SetAttribute = function (obj, attr, value) {obj [attr] = value;};
  else
    SetAttribute = function (obj, attr, value) {obj.setAttribute (attr, value);};

  if (this.browser == BROWSER_IE)
    SetEvent = function (obj, attr, value) {obj [attr] = new Function (value);};
  else
    SetEvent = function (obj, attr, value) {obj.setAttribute (attr, value);};

  RemoveAttribute = function (obj, attr) {obj.removeAttribute (attr);};

  if (this.browser == BROWSER_IE)
    GetClassName = function (obj) {return GetAttribute (obj, "className");};
  else
    GetClassName = function (obj) {return GetAttribute (obj, "class");};

  if (this.browser == BROWSER_IE)
    SetClassName = function (obj, value) {return SetAttribute (obj, "className", value);};
  else
    SetClassName = function (obj, value) {return SetAttribute (obj, "class", value);};

  if (this.browser == BROWSER_IE)
    HasClassName = function (obj) {return HasAttribute (obj, "className");};
  else
    HasClassName = function (obj) {return HasAttribute (obj, "class");};

  if (this.browser == BROWSER_IE && this.version < 500)
    GetChildNodes = function (obj) {return obj.all;};
  else
    GetChildNodes = function (obj) {return obj.childNodes;};

  switch (this.browser)
  {
  case BROWSER_IE:
  case BROWSER_OPERA:
    GetEventSource = function (obj) {return event.srcElement;};
    break;
  default:
    GetEventSource = function (obj) {return obj.target;};
    break;
  }

  //window.alert ("agent=" + this.agent + " ver=" + this.ver + " os=" + this.os + " version=" + this.version + " browser=" + this.browser);
  return this;
}

var browserVersion=new CBrowserVersion();

// http://www.softcomplex.com/docs/get_window_size_and_scrollbar_position.html
function _filterResults(n_win, n_docel, n_body) {
  var n_result = n_win ? n_win : 0;
  if (n_docel && (!n_result || (n_result > n_docel)))
    n_result = n_docel;
  return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}

function GetClientWidth () {return _filterResults (window.innerWidth ? window.innerWidth : 0, document.documentElement ? document.documentElement.clientWidth : 0, document.body ? document.body.clientWidth : 0);}
function GetClientHeight() {return _filterResults (window.innerHeight ? window.innerHeight : 0, document.documentElement ? document.documentElement.clientHeight : 0, document.body ? document.body.clientHeight : 0);}
function GetScrollLeft() {return _filterResults (window.pageXOffset ? window.pageXOffset : 0, document.documentElement ? document.documentElement.scrollLeft : 0, document.body ? document.body.scrollLeft : 0);}
function GetScrollTop() {return _filterResults (window.pageYOffset ? window.pageYOffset : 0, document.documentElement ? document.documentElement.scrollTop : 0, document.body ? document.body.scrollTop : 0);}

function SupportDHTML ()
{
  if (browserVersion == null)
    return false;
  return browserVersion.useDhtml;
}

function GetBrowserVersion (browser)
{
  if (browserVersion == null || browserVersion.browser != browser)
    return 0;
  return browserVersion.version;
}

function IEVersion ()
{
  return GetBrowserVersion (BROWSER_IE);
}

function NSVersion ()
{
  return GetBrowserVersion (BROWSER_NS);
}

function FireFoxVersion ()
{
  return GetBrowserVersion (BROWSER_FF);
}

function OperaVersion ()
{
  return GetBrowserVersion (BROWSER_OPERA);
}

function KonquerorVersion ()
{
  return GetBrowserVersion (BROWSER_KONQUEROR);
}

function SafariVersion ()
{
  return GetBrowserVersion (BROWSER_SAFARI);
}

function SupportLayers ()
{
  if (browserVersion == null)
    return false;
  return browserVersion.useLayer;
}

function SupportAnimation ()
{
  if (browserVersion == null)
    return false;
  return browserVersion.ie >= 550;
}

function Check()
{
  if (!SupportDHTML ())
    return;
  var obj;
  for (var i=0; i < Data.elements.length; i++)
  {
    obj=Data.elements[i];
    if (obj.type=="text" && Data.elements[i].value.length > 0)
    {
      doSubmit.style.visibility="visible";
      return 1;
    }
  }
  doSubmit.style.visibility="hidden";
}

function InitSheet()
{
  if (SupportDHTML ())
    doSubmit.style.visibility="hidden";
}

function ShowAnswer (id, hide)
{
  if (SupportDHTML ())
  {
    var obj;
    if (typeof (id) == "string")
      obj = GetObjectByRef (id);
    else
      obj = id;
    if (hide)
      obj.style.display="none";
    else
      obj.style.display="";
  }
}

function IsAnswerVisible (oItems)
{
  var obj = GetObjectByRef (oItems);
  if (obj)
  {
    return obj.style.display=="inline";
  }
  return false;
}

function ToggleAnswer (id)
{
  if (SupportDHTML ())
  {
    var obj;
    if (typeof (id) == "string")
      obj = GetObjectByRef (id);
    else
      obj = id;
    if (obj.style.display=="none")
      obj.style.display="";
    else
      obj.style.display="none";
   }
}

function ToggleAnswerS (oItems)
{
  var obj = GetObjectByRef (oItems);
  if (obj)
  {
    if (obj.style.display == "none")
    {
      obj.style.display = "inline";
    }
    else
    {
      obj.style.display = "none";
    }
  }
}

function SelectMenu (id)
{
  if (SupportDHTML ())
  {
    if (id.className == "RMenu")
      id.className = "RMenuPush";
    id.style.color = "Red";
  }
}

function UnselectMenu (id)
{
  if (SupportDHTML ())
  {
    if (id.className == "RMenuPush")
      id.className = "RMenu";
    id.style.color = "Black";
  }
}

function ToggleDisplay(oItems)
{
  var obj = GetObjectByRef (oItems);
  if (obj)
    if ((obj.style.display == "") || (obj.style.display == "none"))
    {
      obj.style.display = "block";
      //oButton.src = "/msdn-online/start/images/minus.gif";
    }
    else
    {
      obj.style.display = "none";
      //oButton.src = "/msdn-online/start/images/plus.gif";
    }
}

var menuCount;

function InitDownMenu1 (sTitle)
{
  menuCount = 0;
  document.write ('<table class="DownMenuTable" border="0" width="100%"><tr>');
}

function EndDownMenu1 ()
{
  document.write ("</tr></table>");
}

function MakeDownMenu1 (sName, sBookmark, sInfo, picture)
{
  if (menuCount == 5)
  {
    document.write ('</tr></tr>');
    menuCount = 1;
  }
  else
    menuCount++;

  var index;
  thisPage = location.href;
  index = thisPage.lastIndexOf ("/");
  if (index < 0)
    index = thisPage.lastIndexOf ("\\");
  if (index > 0)
    thisPage = thisPage.substr (index + 1);
  if (sName == null || thisPage == sName || thisPage == "_" + sName)
  {
    if (picture == null)
      document.write ('<td class="DownMenuCell">' + sInfo + '</td>\n');
    else
      document.write ('<td class="DownMenuCell">' + picture + sInfo + '</td>\n');
    return true;
  }
  else
  {
    var ref;
    if (sBookmark == "")
      ref = sName;
    else
      ref = sName + "#" + sBookmark;
    if (picture == null)
      document.write ('<td class="DownMenuCell"><a href="' + ref + '">' + sInfo + '</a></td>\n');
    else
      document.write ('<td class="DownMenuCell"><a href="' + ref + '">' + picture + sInfo + '</a></td>\n');
    return false;
  }
}