var collapsed = "<img alt=\"expand\" src=\"$$$SLF$$$images/collapsd.gif\" border=\"0\">";
var expanded = "<img alt=\"collapse\" src=\"$$$SLF$$$images/expanded.gif\" border=\"0\">";
var empty = "<img src=\"$$$SLF$$$images/empty.gif\" border=\"0\">";
var leaf = "<img src=\"$$$SLF$$$images/leaf.gif\" border=\"0\">";
var tocKindexMode = null;
var tocType; // Either "xml" if using the XML TOC or "js" if using js TOC.
var cssSupport; // true for ns 4 or ie3 or ie4 or ie5, false otherwise.
var cssHiding; // true for IE, false for NS
var cssIndenting; // false for IE3, true otherwise
var navDoc;
var tocKindexMode = "toc";
var enableFeedback;
var startPage = null;
var windowFeedback = null;
var slfString = "";
var currentToc = "toc.htm";

var bMSIE = false;
var bMSIE3 = false, bMSIE4 = false, bMSIE4_beta = false, bMSIE4_01 = false, bMSIE5 = false;
var bNetscape = false;
var bNetscape_2 = false, bNetscape_3 = false, bNetscape_4 = false, bNetscape_6 = false;
var N6 = false;

function browser()
{
	// borrowed from Microsoft
    var ua = navigator.userAgent;
    var an = navigator.appName;

    // Is it IE?
    bNetscape = (ua.indexOf("MSIE")>=1);
    if (bNetscape)
	{
        // IE3
        bNetscape_3 = (ua.indexOf("MSIE 3.0")>=1);

        // IE4
        var iMSIE4 = ua.indexOf("MSIE 4.0");
        bNetscape_6 = (iMSIE4>=1);
        if (bNetscape_6)
        {
            var sMinorVer = ua.charAt(iMSIE4+8);
            // Some folks are still running an IE4 beta!
            // (the Mac IE team used a 'p' to mark their beta)
            bMSIE4_beta = bMSIE4 && ((sMinorVer == "b") || (sMinorVer == "p"));

            // IE4.01
            bMSIE4_01 = bMSIE4 && (sMinorVer == "1");
        }
        // IE5
	var msie = ua.indexOf("MSIE ");
	if (msie>=1)
	{
		bNetscape_6 = (parseInt(ua.substring(msie+5, ua.indexOf(".", msie))) >= 5);
        }
    }
    else if (an == "Netscape")
    {
        bNetscape = true;
        appVer = parseInt(navigator.appVersion);
        if (appVer >= 5)
            bNetscape_6 = true, N6 = true;
        else if (appVer >= 4)
            bNetscape_4 = true;
        else if (appVer >= 3)
            bNetscape_3 = true;
        else
            bNetscape_2 = true;
    }

	// Figure out CSS support.

	if ( bMSIE4 || bMSIE5 || bNetscape_6)   //netscape 4.01 & 4.6 were screwing up the toc indentation when using CSS
	{
		cssSupport = true;
		cssHiding = !bNetscape_4;
		cssIndentation = !bMSIE3;
	}
	else
		cssSupport = false;

	// Can we do feedback?
	if (document.location.protocol == "http:"
		|| document.location.protocol == "http"
		|| document.location.protocol == "https"
		|| document.location.protocol == "https:"
		|| document.location.protocol == ""
		|| document.location.protocol == null)
		enableFeedback = true;
	else
		enableFeedback = false;

}

function doSLF(mainStr)
{
	return replaceString(mainStr, "$$$SLF$$$", slfString);
}

// Following routines come from Danny Goodman's JavaScript Bible
function getFront(mainStr, searchStr)
{
	foundOffset = mainStr.indexOf(searchStr);
	if (foundOffset == -1)
	{
		return null;
	}
	return mainStr.substring(0, foundOffset);
}

function getEnd(mainStr, searchStr)
{
	foundOffset = mainStr.indexOf(searchStr);
	if (foundOffset == -1)
	{
		return null;
	}
	return mainStr.substring(foundOffset + searchStr.length, mainStr.length);
}

function replaceString(mainStr, searchStr, replaceStr)
{
	var front = getFront(mainStr, searchStr);
	var end = getEnd(mainStr, searchStr);
	if (front != null && end != null)
	{
		return front + replaceStr + end;
	}
	return mainStr;
}

// End of routines from Danny Goodman.


//moved this functionality outside of doInit() since the SLF wasn't
//being set early enough on reload.  This function will get called before
//onLoad()
//mcampbel - 11/02/99
function setSLF(slf)
{
	if (slf != null)
		slfString = slf;

	collapsed = doSLF(collapsed);
	expanded = doSLF(expanded);
	empty = doSLF(empty);
	leaf = doSLF(leaf);
}



function doInit()
{
	navFrame = window.frames[2];
	textFrame = window.frames["TEXT"];
	localFrame = window.frames["LOCAL"];

    if ( bMSIE4 || bMSIE5 )        // is Microsoft Internet Explorer; return version number
	{
		tocType = "xml";
	}
	else
	{
		tocType = "js"
	}

	// Check if we are reloading and the navigation area could
	// not reload
	if (navFrame.EpicTOCLoaded != null)
	{
		if (navFrame.EpicTOCLoaded == true)
		{
			//We must be reloading and the nav area is reloaded already so
			return;
		}
	}
	// Check for a start page.
	if (document.location.search != null && document.location.search != "")
	{
		if (document.location.search.substring(0,9) == "?startat=")
		{
			// Got a start page
			// scuzner added document.location.hash to allow for linking to hashpoint
			startPage = document.location.search.substring(9,document.location.search.length)+document.location.hash;
		}
	}

	navDoc = navFrame.document;

	if (tocType == "js")
	{
		Node.navLoaded = false;
		if (window.parent.bNetscape_3)
		{
			navFrame.open(currentToc, navFrame.name);
		}
		else
		{
			navFrame.document.location.replace(currentToc);
		}
	}
	else
	{
		navFrame.document.location.replace("nav.htm");
		localFrame.document.location.replace("npflocal.htm");
	}
	window.focus();
}

function simpleExpandCollapse(nodeIndex)
{
	var newToc;
	if (Node.xref[nodeIndex].otherNav != null)
	{
		newToc = Node.xref[nodeIndex].otherNav + ".htm";
	}
	else
		newToc = currentToc;

	Node.xref[nodeIndex].expandCollapse();
	if (newToc != currentToc)
	{
		currentToc = newToc;
		Node.navLoaded = false;
	}

	if (N6)
	{
		navFrame.document.location.replace(currentToc);
	}
	else
	{
		navFrame.open(currentToc, navFrame.name);
	}
}

function tocExpandCollapse(nodeIndex)
{
	Node.xref[nodeIndex].expandCollapse();
}

function gotoToc()
{
	tocKindexMode = "toc";
}

function gotoIndex()
{
	tocKindexMode = "kindex";
}

function kindexHref(nodeIndex)
{
	var currentNode = Node.xref[nodeIndex];
	if (currentNode == null)
		return;
	var hrefArray = currentNode.hrefArray;
	if (hrefArray == null || hrefArray.length == null)
		return;
	if (hrefArray.length == 1)
	{
		window.frames["TEXT"].location = hrefArray[0];
	}
	else
	{
		var selectWindow = window.open("", "select", "height:300,width:350");
		var nameArray = currentNode.nameArray;
		selectWindow.document.writeln("<html><head><title>Select Reference</title></head>");
		selectWindow.document.writeln("<body>");
		for (i = 0; i < hrefArray.length; i++)
		{
			selectWindow.document.writeln("<p><a href=\"" + hrefArray[i] + "\">" + nameArray[i] + "</a>");
		}
	}
}

function Node(index, parent, mode, href, text, tocClass, otherNav)
{
// This is the constructor for the Node object. Yes,
// we are going to be object oriented.
	this.index = index;
	Node.xref[index] = this;
	if(parent != null)
	{
		if(Node.xhref) 
			 Node.xhref[href] = this;
	}
	this.parent = parent;
	this.mode = mode;
	this.children = new Array();
	this.href = href;
	this.text = text;
	this.count = 0;
	this.mycount = 0;
	if (tocClass == "")
		this.tocClass = "";
	else
		this.tocClass = tocClass;
	if (otherNav != null)
		this.otherNav = otherNav;
	else
	{
		if (mode != "expanded" && mode != "leaf" && mode != "collapsed")
			this.otherNav = mode;
		else
			this.otherNav = null;
	}
	this.output = Node_output;
	this.addChild = Node_addChild;
	this.expandCollapse = Node_expandCollapse;
	if (parent != null)
		this.level = parent.level + 1;
	else
		this.level = 0;
}

function Node_output(openDoc)
{
// Converts a Node to the string appearance.
// We do entirely different processing if CSS support
// is available so check that first.
	var stringValue;
	if (window.cssSupport)
	{
		if ((this.tocClass == "kindex") ||
				(this.tocClass == "navindex1") ||
				(this.tocClass == "navindex2") ||
				(this.tocClass == "navindex3"))
		{
			var classValue;
			var hrefValue;
			if (this.tocClass == "kindex")
			{
				classValue = "navbucket";
				hrefValue = "window.parent.simpleExpandCollapse";
			}
			else
			{
				classValue = this.tocClass;
				hrefValue = "window.parent.kindexHref";
			}
			if (bMSIE3)
				stringValue = "<div>"
					+ this.text + "#1#</div>";
			else
				stringValue = "<div><a href=\"javascript:" + hrefValue + "("
					+ this.index + ");\" class=\"" + classValue
					+ "\">###"
					+ this.text + "</a></div>";
			openDoc.writeln(stringValue);
			if ((this.mode != "collapsed" || bMSIE3) && this.mode != "leaf")
			{
				for (var i = 0; i < this.children.length; i++)
				{
					this.children[i].output(openDoc);
				}
			}
		}
		else
		{
			var fullCount = "" + Node.xref[0].count;
			var fLength = fullCount.length;
			var thisCount = "" + this.count;
			var tLength = thisCount.length;
			var clearCount = fLength - tLength;
			var cSpace='';
			while (clearCount > 0) {
				cSpace = cSpace + "&nbsp;";
				clearCount -=1;
			}
			var countString;
			if (this.count == 0) {
				countString = "<font face=monospace>" + cSpace + "&nbsp;</font> ";
			}
			else {
				countString = "<font face=monospace color=red>" + cSpace + this.count + "</font> ";
			}


			if ((this.mode == "collapsed" || this.mode == "expanded") && !bMSIE3)
				stringValue = "<div><nobr>" + countString + "<a class=\"navtree\" href=\"javascript:window.parent.simpleExpandCollapse("
					+ this.index + ");\">";
			else
				stringValue = "<div><nobr>" + countString;
				
			if (bMSIE3)
			{
				for (var i = 0; i < this.level; i++)
					stringValue = stringValue + window.parent.empty;
			}
			else
			{
				if (this.mode == "collapsed")
					stringValue = stringValue + collapsed + "</a>";
				else if (this.mode == "expanded")
					stringValue = stringValue + expanded + "</a>";
				else
					stringValue = stringValue + empty;
			}
			if (this.href != null)
			{
				stringValue = stringValue + "<a href=\""
					+ this.href + "\" target=\"TEXT\" class=\"" + this.tocClass + "\">" + this.text + "</a></nobr>";
			}
			else
				stringValue = stringValue + "<a class=\"" + this.tocClass + "\">"
					+ this.text + "#%#</a></nobr>";
			openDoc.writeln(stringValue);
			if (bMSIE3)
				openDoc.writeln("</div>");
			if ((this.mode != "collapsed" || bMSIE3) && this.mode != "leaf")
			{
				for (var i = 0; i < this.children.length; i++)
				{
					this.children[i].output(openDoc);
				}
			}
			if (!bMSIE3)
				openDoc.writeln("</div>");
		}
	}
	else
	{
		// here is the old browser version.
		if ((this.tocClass == "kindex") ||
				(this.tocClass == "navindex1") ||
				(this.tocClass == "navindex2") ||
				(this.tocClass == "navindex3"))
		{
			var indentValue;
			var hrefValue;
			if (this.tocClass == "kindex")
			{
				hrefValue = "javascript:window.parent.simpleExpandCollapse";
				indentValue = "";
			}
			else
			{
				hrefValue = "javascript:window.parent.kindexHref";
				indentValue = window.parent.empty;
				if (this.tocClass == "navindex2")
				{
					indentValue = indentValue + window.parent.empty;
				}
				else if (this.tocClass == "navindex3")
				{
					indentValue = indentValue + window.parent.empty + window.parent.empty;
				}
			}
			stringValue = "<nobr>" + indentValue
				+ "<a href=\"" + hrefValue + "("
				+ this.index + ");\">"
				+ this.text + "#2#</a></nobr>";
			openDoc.writeln(stringValue + "<br>");
			if ((this.mode != "collapsed" || bMSIE3) && this.mode != "leaf")
			{
				for (var i = 0; i < this.children.length; i++)
				{
					this.children[i].output(openDoc);
				}
			}
		}
		else
		{
		// Old browser doing the TOC

			// Compute the indentValue
			indentValue = "";
			for (var i = 0; i < this.level; i++)
				indentValue = indentValue + window.parent.empty;
			stringValue = "<nobr>" + indentValue;
			if (this.count > 0)
				stringValue = stringValue + this.count + ' ';
			// If this is an expanded or a collapsed node, then
			// the img is a link.
			if ((this.mode == "collapsed" || this.mode == "expanded") && !bMSIE3)
			{
				stringValue = stringValue
					+ "<a href=\"javascript:window.parent.simpleExpandCollapse("
					+ this.index + ");\">";
				if (this.mode == "collapsed")
					stringValue = stringValue + window.parent.collapsed;
				else
					stringValue = stringValue + window.parent.expanded;
				stringValue = stringValue + "</a>";
			}
			else
			{
				stringValue = stringValue + window.parent.leaf;
			}
			// If this has an href, then make a link
			if (this.href != null)
				stringValue = stringValue
					+ "<a href=\"" + this.href + "\" target=\"TEXT\">"
					+ this.text + "</a>";
			else
				stringValue = stringValue
					+ this.text;
			openDoc.writeln(stringValue + "</nobr><br>");
			if ((this.mode != "collapsed" || bMSIE3) && this.mode != "leaf")
			{
				for (var i = 0; i < this.children.length; i++)
				{
					this.children[i].output(openDoc);
				}
			}
		}
	}
}

function Node_addChild(index, mode, href, text, tocClass)
{
// Adds a child Node to the children array.
	var otherNav;
	if (mode != "leaf" && mode != "collapsed" && mode != "expanded")
	{
		otherNav = mode;
		mode = "collapsed";
	}
	else
		otherNav = null;

	var newNode = new Node(index, this, mode, href, text, tocClass, otherNav);
	this.children[this.children.length] = newNode;
	return newNode;
}

function Node_expandCollapse()
{
	if (this.mode == "expanded")
		this.mode = "collapsed";
	else if (this.mode == "collapsed")
		this.mode = "expanded";
}

function getNode()
{
	return Node;
}

function pageNext()
{
    var textFrame = window.frames["TEXT"];
    var hrefTarget = textFrame.location.pathname;

    var targetFound = false;

	if (hrefTarget.lastIndexOf("\\") != 0)
	{
		hrefTarget = hrefTarget.substring(hrefTarget.lastIndexOf("\\")+1);
	}
	if (hrefTarget.lastIndexOf("/") != 0)
	{
		hrefTarget = hrefTarget.substring(hrefTarget.lastIndexOf("/")+1);
	}

	for (var i = 0; i < window.Node.rootChunkArrayLength; i++)
	{
		thisNode = window.Node.rootChunkArray[i];
		hrefString = thisNode.href;
		if (hrefString == null)
			continue;
		if (hrefString == hrefTarget)
		{
			targetFound = true;
		}
		else if (targetFound)
		{
			if (textFrame != null)
			{
				if (bMSIE3)
					textFrame.open(hrefString,textFrame.name);
				else
					textFrame.document.location = hrefString;
			}
			return;
		}
	}

    alert(messages.noNextPage);
}

function pagePrev()
{
    var textFrame = window.frames["TEXT"];
    var hrefTarget = textFrame.location.pathname;

    var targetFound = false;

	if (hrefTarget.lastIndexOf("\\") != 0)
	{
		hrefTarget = hrefTarget.substring(hrefTarget.lastIndexOf("\\")+1);
	}
	if (hrefTarget.lastIndexOf("/") != 0)
	{
		hrefTarget = hrefTarget.substring(hrefTarget.lastIndexOf("/")+1);
	}
	for (var i = window.Node.rootChunkArrayLength - 1; i > -1 ; i--)
	{
		thisNode = window.Node.rootChunkArray[i];
		hrefString = thisNode.href;
		if (hrefString == null)
			continue;
		if (hrefString == hrefTarget)
		{
			targetFound = true;
		}
		else if (targetFound)
		{
			if (textFrame != null)
			{
				if (bMSIE3)
					textFrame.open(hrefString,textFrame.name);
				else
					textFrame.document.location = hrefString;
			}
			return;
		}
	}

    alert(messages.noPreviousPage);
}

function getTreeLoc()
{
// return should look like: <input type="hidden" name="TreeLoc" value="1">
   var hrefTarget = window.frames["TEXT"].location.pathname;

    var targetFound = false;

	if (hrefTarget.lastIndexOf("/") != 0)
	{
		hrefTarget = hrefTarget.substring(hrefTarget.lastIndexOf("/")+1);
	}
	for (var i = 0; i < window.Node.rootChunkArrayLength && !targetFound; i++)
	{
		thisNode = window.Node.rootChunkArray[i];
		hrefString = thisNode.href;
		if (hrefString == null)
			continue;
		if (hrefString == hrefTarget)
		{
			targetFound = true;
			if (thisNode.text != null)
			{
				return("<input type=\"hidden\" name=\"TreeLoc\" value=\"" + thisNode.text + "#^#\">");
			}
		}
	}
	return("<input type=\"hidden\" name=\"TreeLoc\" value=\"1\">");
}

function provideFeedback()
{
	if (window.windowFeedback == null || window.windowFeedback.closed == true)
		window.windowFeedback = window.open("enter2.htm", "feedback", "width=600,height=450");
	if (window.windowFeedback != null)
	{
		if (window.windowFeedback.opener == null)
			window.windowFeedback.opener = self;
		if (window.windowFeedback.focus != null)
			window.windowFeedback.focus();
	}
}

function cancelFeedback()
{
	if (tocType == "js")
	{
		if (window.windowFeedback == null || window.windowFeedback.closed == true)
			return;
		window.windowFeedback.close();
	}
}

// Determine the browser and the TOC type
browser();