// ---------------------------------------------------------------------
// 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-online/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-online/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 "clsBtn" 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" 		:
			doButtonClick( oEl );
			break;
	
		case "keyup" 		:
			if( 13 == event.keyCode )
			{
				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: void
//
//	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=480,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 false;
		}
	}
			
	if( "function" == typeof( fnCustomAction ) )
	{	
		return fnCustomAction( oEl );
	}
}

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

function PreloadNavLinksImages()
{
	var sRootPath = new String("/msdn-online/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();