// Script code Copyright MyRo 1999-2008
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 || this.browser == BROWSER_SAFARI || this.browser == BROWSER_KONQUEROR || this.webkit > 0;
  this.useLayer = this.getVersion (BROWSER_NS) == 400;
  this.supportError = this.getVersion (BROWSER_IE) >= 500 || this.getVersion (BROWSER_NS) >= 600;

  if (document.all)
    GetObjectByRef = function (nm) {return window.document.all [nm];};
  else if (document.getElementById)
    GetObjectByRef = function (nm) {return document.getElementById (nm);};
  else if (document.layers)
    GetObjectByRef = function (nm) {return document.layers [nm];};
  else
    GetObjectByRef = 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;};
  //window.alert ("agent=" + this.agent + " ver=" + this.ver + " os=" + this.os + " version=" + this.version + " browser=" + this.browser);
  return this;
}

var browserVersion = new CBrowserVersion();

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 GetStyleSheet (location)
{
  if (IEVersion () >= 0)
  {
    if (IEVersion () < 400)
      return '<LINK REL="stylesheet" TYPE="text/css" HREF=' + location + '"MR3.css">';
    if (IEVersion () < 500)
      return '<LINK REL="stylesheet" TYPE="text/css" HREF=' + location + '"MR4.css">';
  }
  if (KonquerorVersion () >= 0)
    return '<LINK REL="stylesheet" TYPE="text/css" HREF=' + location + '"KQ5.css">';
  if (NSVersion () >= 0)
  {
    if (NSVersion () < 500)
      return '<LINK REL="stylesheet" TYPE="text/css" HREF=' + location + '"NV4.css">';
  }
  return '<LINK REL="stylesheet" TYPE="text/css" HREF=' + location + '"MR5.css">';
}

function ShowAnswer (id, hide)
{
  if (SupportDHTML ())
    if (hide)
      id.style.display="none";
    else
      id.style.display="";
}

function ToggleAnswer (id)
{
  if (SupportDHTML ())
  {
    if (id.style.display=="none")
      id.style.display="";
    else
      id.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;
  }
}