// -----------------------------------------------------------
    // InitNavLinks()
    // Sets link text, URL and icon for NavLinks Show based on framed state
    // -----------------------------------------------------------

    function InitNavLinks()
    {
        if ("object" != typeof(lnkShowImg) || "object" != typeof(imgShow) || "object" != typeof(lnkShowImg.all.tags( "FONT" )))
        {
            return false;
        }

        var bIsFramed = ((top != self) && ("TOC" == top.frames[0].name));
        if (bIsFramed)
        {
            lnkShowImg.all.tags( "FONT" )[0].innerText = "hide toc";
            lnkShowImg.href = self.location.href;
            imgShow.src = "msdn/shared/graphics/icons/hidetoc.gif";
        }
        else
        {
            lnkShowImg.all.tags( "FONT" )[0].innerText = "show toc";
            var sPath = self.location.pathname;

            // WATCH OUT FOR INSTANCES OF MSDN-ONLINE !!!   
            sPath = sPath.replace("/msdn-online","");
            var sFrameHref = sPath.match(/[/][^/]+[/]/) + "c-frame.htm?" + sPath;
            lnkShowImg.href = sFrameHref;
            imgShow.src = "msdn/shared/graphics/icons/showtoc.gif";
        }
    }

    // -----------------------------------------------------------
    // NavLinks_hover()
    // DHTML script for NavLinks mouseover and mouseout.
    // -----------------------------------------------------------

    
        /////////////////////////////////////////////////////////////
        //
        //  Function: process_button() - Button Event handler
        //  Parameters: none
        //  Returns: void
        //
        //  This function processes mouse and keyboard events on all
        //  button elements (className contains "Btn" within a given
        //  container.  Button specific processing is sent to the buttonClick()
        //      function. Information about the button can be stored in expandos,
        //          STATE ( "On" , "Off" )
        //          IMG ( contains the base name and ID of the icon )
        //
        /////////////////////////////////////////////////////////////
    
    
        function process_button()
        {
            var oEl = event.srcElement;
            event.cancelBubble = true;
            while( -1 == oEl.className.indexOf( "Btn" ) )
            {
                oEl = oEl.parentElement;
                if( !oEl ) return;
            }
            var baseClass = oEl.className.substring( 0 , oEl.className.indexOf( "Btn" ) + 3 );
            var btnImage = null;
            if( oEl.IMG ) btnImage = oEl.all.tags( "IMG" )[0];
    
            switch( event.type )
            {
                case "mouseout" :
                    if( oEl.contains( event.toElement ) ) return;
                    if( btnImage )
                    {
                        btnImage.src =  btnImage.src.substring( 0 , btnImage.src.length - 5 ) + "1.gif";
                    }
                    if( oEl.STATE )
                    {
    
                        oEl.className = baseClass + oEl.STATE;
                    }
                    else
                    {
                        oEl.className = baseClass + "Off";
                    }
                    break;
                case "mouseover" :
                    if( oEl.contains( event.fromElement ) ) return;
                    
                    if( btnImage )
                    {
                        btnImage.src =  btnImage.src.substring( 0 , btnImage.src.length - 5 ) + "2.gif";
                    }
                    if( oEl.STATE )
                    {
                        var tmpState = oEl.STATE == "Off" ? "Up" : "Down";
                        oEl.className = baseClass + tmpState;
                    }
                    else
                    {
                        oEl.className = baseClass + "Up";
                    }
                    break;
    
                case "mousedown" :
                    oEl.className = baseClass + "Down";
                    break;
    
                case "mouseup" :
                    if( oEl.STATE )
                    {
                        oEl.STATE = oEl.STATE == "Off" ? "On" : "Off";
                        var tmpState = oEl.STATE == "On" ? "Down" : "Up";
                        oEl.className = baseClass + tmpState;
                    }
                    else
                    {
                        oEl.className = baseClass + "Up";
                    }
                    break;
    
                case "click" :
                    event.returnValue = doButtonClick( oEl );
                    break;
    
                case "dblclick" :
                    event.returnValue = doButtonClick( oEl );
                    break;
    
                case "keyup" :
                    if( 13 == event.keyCode )
                    {
                        if( oEl.STATE )
                        {
                            oEl.STATE = oEl.STATE == "Off" ? "On" : "Off";
                            var tmpState = oEl.STATE == "On" ? "Down" : "Up";
                            oEl.className = baseClass + tmpState;
                        }
                        else
                        {
                            oEl.className = baseClass + "Up";
                        }
                        event.returnValue = doButtonClick( oEl );
                    }
                    break;
                    
                case "selectstart" :
                    if( oEl )
                    {
                        event.returnValue = false;
                        return false;
                    }
                    break;
    
                default :
                    break;
    
            }
        }
    
    ////////////////////////////////////////////////////////////////////
    //
    //  Function: doButtonClick()
    //  Parameters: oEl - Button Element which fired the event
    //  Returns: event return value
    //
    //  This function navigates to the first link contained in a button,
    //  or performs a custom button action if one is defined on an individual page.
    //
    ////////////////////////////////////////////////////////////////////
    
        function doButtonClick( oEl )
        {
            var oLink = oEl.all.tags( "A" );
            if( oLink.length  )
            {
                if( "_blank" == oLink[0].target )
                {
                    winComments = window.open(  oLink[0].href ,"winComments" , "width=640,height=420,location=no,status=yes,resizable=yes,scrollbars=yes,menubar=yes,toolbar=no" );
                    winComments.focus();
                    event.returnValue = false;
                    return false;
                }
                else if( !oEl.ACTION )
                {
                    oLink[0].click();
                    return true;
                }
            }
            
            if( "function" == typeof( fnCustomAction ) )
            {   
                return fnCustomAction( oEl );
            }
        }

    // -----------------------------------------------------------
    // PreloadNavLinksImages()
    // Preloads mouseover images.
    // -----------------------------------------------------------

    function PreloadNavLinksImages()
    {
        var sRootPath = new String("msdn/shared/graphics/icons/");
        var aImages = new Array("show","hide","sync","index","search","prev","next","up");
        for (var i=0;i<aImages.length;i++)
        {
            var eImg = new Image();
            eImg.src = sRootPath + "nl-" + aImages[i] + "-1.gif";
        }
    }
    if (oBD.getsNavBar) PreloadNavLinksImages();