// *********************
// Validation
// *********************

function validate(frm) {
	nm = frm.name;
	msg = "";
	if (nm == "searchForm") {
		if (frm.string.value == "")
			msg = "Please enter text in the search box.";
		else if (!frm.title.checked && !frm.author.checked)
			msg = "Please check either (or both) of the \"Titles\" or \"Authors\" box.";
	} else if (nm == "categoryForm") {
		if (frm.category.options[0].selected || frm.category.options[1].selected)
			msg = "Please select a category.";
	} else if (nm == "monthForm") {
		if (frm.month.options[0].selected || frm.month.options[1].selected)
			msg = "Please select a month.";
	} else if (nm == "seriesForm") {
		if (frm.series.options[0].selected || frm.series.options[1].selected)
			msg = "Please select a series.";
	}

	if (msg) {
		alert (msg);
		return false;
	}
	return true;
}
// *********************
// Browse drop-down handlers
// *********************

function changeDD(slct) {
	nm = slct.name;
	if (nm == "category") {
		document.monthForm.month.options[0].selected = true;
		document.seriesForm.series.options[0].selected = true;
	} else if (nm == "month") {
		document.categoryForm.category.options[0].selected = true;
		document.seriesForm.series.options[0].selected = true;
	} else if (nm == "series") {
		document.categoryForm.category.options[0].selected = true;
		document.monthForm.month.options[0].selected = true;
	}
}

// *********************
// Leftnav handlers
// *********************

function formHandler(){
	var URL = document.pulldown.selectname.options[document.pulldown.selectname.selectedIndex].value;
	window.location.href = URL;
}

/**********************************************************************************   
FoldoutMenu 
*   Copyright (C) 2001 Thomas Brattli
*   This script was released at DHTMLCentral.com
*   Visit for more great scripts!
*   This may be used and changed freely as long as this msg is intact!
*   We will also appreciate any links you could give us.
*
*   Made by Thomas Brattli
*
*   Script date: 09/04/2001 (keep this date to check versions) 
*********************************************************************************/
function lib_bwcheck() { //Browsercheck (needed)
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=(navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?1:0
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this;
}

var bw=lib_bwcheck();

/*** variables you can configure ***/

FoldNumber = 6;                                  //How many toplinks do you have?
var stayFolded = false;                  //Stay open when you click a new toplink?
foldImg = 1;                                             //Do you want images (if not set to 0 and remove the images from the body)?
mainOffsetY = 0;                                 //Vertical space adjustment between the main items, in pixels.

//This is the default image.
//Remember to change the actual images in the page as well, but remember to keep the name of the image.
var unImg=new Image();
unImg.src='/img/extras/foldoutmenu_arrow.gif';

var exImg=new Image();                                  //Making an image variable...
exImg.src='/img/extras/foldoutmenu_arrow_open.gif';  //...this is the source of the image that it changes to when the menu expands.

// NOTE: if you change the position of divCont from absolute to relative, you can put the foldoutmenu in a table.
// HOWEVER it will no longer work in netscape 4. If you wish to support netscape 4, you have to use absolute positioning.

/*** There should be no need to change anything beyond this. ***/

// A unit of measure that will be added when setting the position of a layer.
var px = bw.ns4||window.opera?"":"px";

if(navigator.userAgent.indexOf('Opera')>-1 && document.getElementById){ //Opera 5 resize fix.
	scrX= innerWidth; scrY= innerHeight;
	document.onmousemove= function(){
		if(scrX<innerWidth-10 || scrY<innerHeight-10 || scrX>innerWidth+10 || scrY>innerHeight+10){
			scrX = innerWidth;
			scrY = innerHeight;
			initFoldout();
		}
	};
}

//object constructor...
function makeMenu(obj,nest) {
	nest= (!nest)?"":'document.'+nest+'.';
	this.el= bw.ie4?document.all[obj]:bw.ns4?eval(nest+'document.'+obj):document.getElementById(obj);       
	this.css= bw.ns4?this.el:this.el.style;
	this.ref= bw.ns4?this.el.document:document;             
	this.x= (bw.ns4||bw.opera5)?this.css.left:this.el.offsetLeft;
	this.y= (bw.ns4||bw.opera5)?this.css.top:this.el.offsetTop;
	this.h= (bw.ie||bw.ns6)?this.el.offsetHeight:bw.ns4?this.ref.height:bw.opera5?this.css.pixelHeight:0;
	this.vis= b_vis;
	this.hideIt= b_hideIt;
	this.showIt= b_showIt;
	this.moveIt= b_moveIt;
	return this;
}
//object methods...
function b_showIt(){this.css.visibility='visible'}
function b_hideIt(){this.css.visibility='hidden'}
function b_vis(){if(this.css.visibility=='hidden' || this.css.visibility=='HIDDEN' || this.css.visibility=='hide') return true;}
function b_moveIt(x,y){this.x=x; this.y=y; this.css.left=this.x+px; this.css.top=this.y+px}

/************************************************************************************
This is the function that changes the sub menus to folded or unfolded state.
************************************************************************************/
function menu(num){
	if(bw.bw){
		if (!stayFolded){
			for (var i=0; i<oSub.length; i++){
				if (i!=num){
					oSub[i].hideIt()
					if (foldImg)oTop[i].ref["imgA"+i].src = unImg.src
				}
			}
			for(var i=1; i<oTop.length; i++){
				oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].h)
			}
		}
		if (oSub[num].vis()){
			oSub[num].showIt()
			if (foldImg)oTop[num].ref["imgA"+num].src = exImg.src
		}else{
			oSub[num].hideIt()
			if(foldImg)oTop[num].ref["imgA"+num].src = unImg.src
		}
		for(var i=1; i<oTop.length; i++){ 
			if (!oSub[i-1].vis()) oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].h+oSub[i-1].h+mainOffsetY) 
			else oTop[i].moveIt(0,oTop[i-1].y+oTop[i-1].h+mainOffsetY)
		}
	}
}

/*********************************************************************
The init function... there should be no need to change anything here.
*********************************************************************/
function initFoldout(){
	//Fixing the browsercheck for opera... this can be removed if the browsercheck has been updated!!
	bw.opera5 = (navigator.userAgent.indexOf("Opera")>-1 && document.getElementById)?true:false
	if (bw.opera5) bw.ns6 = 0

	oTop = new Array()
	oSub = new Array()
	//Making the objects and hiding the subs...
	for (var i=0; i<FoldNumber; i++){
		oTop[i] = new makeMenu('divTop'+i,'divCont')
		oSub[i] = new makeMenu('divSub'+i,'divCont.document.divTop'+i)
		oSub[i].hideIt()
	}
	
	//Positioning the top objects...
	oTop[0].moveIt(0,0)
	for (var i=1; i<oTop.length; i++){
		oTop[i].moveIt(0, oTop[i-1].y+oTop[i-1].h+mainOffsetY)
	}
	
	//Making the containing menu object and showing it...
	oCont = new makeMenu('divCont')
	oCont.showIt()
	
	//Added by RCN
	menu(0)
	//URLString = document.URL
	//if (URLString.indexOf("aa.html") != -1) {
	  //  menu(1)
	//}
}

// If the browser is ok, the script is started onload...
// if(bw.bw) onload = initFoldout;
// This function is called from the body tag on the public side, and isn't needed on the admin side.
//

// *********************
// Show/Hide about text
// *********************

function toggleLayer( abouttext )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( abouttext );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[abouttext];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[abouttext];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}