NS4 = (document.layers);
   NS6 =  ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) == 5))
   IE4 = (document.all);
  ver4 = (NS4 || IE4);
 MAC45 = (navigator.appVersion.indexOf("MSIE 4.5") != -1)
 isMac = (navigator.appVersion.indexOf("Mac") != -1);
 menuHeight=106;
 menuOffset=151;
 menuBarHeight=0;
var overmenu = false;
var openmenu = null;
var overcheck = null;
var loaded = false;
function stripCharsNotInBag (s, bag)
{   var i;
    var returnString = "";
    // Search through string's characters one by one.
    // If character is in bag, append to returnString.
    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) != -1) returnString += c;
    }
    return returnString;
}
 
 
function getRealLeft(img) {
// Find Position of Image File
	xPos = img.offsetLeft;
	tempEl = img.offsetParent;
  	while (tempEl != null) {
  		xPos += tempEl.offsetLeft;
  		tempEl = tempEl.offsetParent;
  	}
	return xPos;
}
function getRealTop(img) {
// Find Position of Image File
	yPos = img.offsetTop;
	tempEl = img.offsetParent;
	while (tempEl != null) {
  		yPos += tempEl.offsetTop;
  		tempEl = tempEl.offsetParent;
  	}
	if (MAC45) yPos=menuOffset;
	return yPos;
	}
function findloc (imgname)
// Find Position of Image File
{
var holdingImage = document.images[imgname];
var canvasLeft = (NS4) ? holdingImage.x : getRealLeft(holdingImage);
var canvasTop = (NS4) ? holdingImage.y : getRealTop(holdingImage);
var canvasWidth = holdingImage.width;
var canvasHeight = holdingImage.height;
return ([canvasLeft,canvasTop,canvasHeight]);
}
function showMenu(imgname) 
// Show Menu Layer
{	if (NS4 || loaded)
	{
		if (NS6) 
			menu=document.getElementById(imgname+"layer")
		else if (NS4)
			menu=eval("document.layers."+imgname+"layer")
		else
			menu=eval(imgname+"layer");
	}
	if (NS4) menu.visibility = "show"
	else menu.style.visibility = "visible"
	openmenu=imgname;
}
function hideMenu() 
// Hide Menu Layer
{
if (openmenu != null)
	{
		if (NS6) 
			menu=document.getElementById(openmenu+"layer")
		else if (NS4)
			menu=eval("document.layers."+openmenu+"layer")
		else
			menu=eval(openmenu+"layer");
	    if (NS4) menu.visibility = "hide"
	    else menu.style.visibility = "hidden"
		//img_inact(openmenu)
	}
}
function popup (imgname)
// Pop Up Menu
{
	if (NS6) 
		menu=document.getElementById(imgname+"layer")
	else if (NS4)
		menu=eval("document.layers."+imgname+"layer")
	else
		menu=eval(imgname+"layer");
if (NS4)
{
	menu.top = findloc(imgname)[1] + 1 + menuBarHeight;
	menu.left = findloc(imgname)[0];
}
else if (NS6)
{
	menu.style.top = findloc(imgname)[1] + 1 + menuBarHeight;
	menu.style.left = findloc(imgname)[0];
}
else
{
	menu.style.pixelTop = findloc(imgname)[1] + 1 + menuBarHeight;
	menu.style.pixelLeft = findloc(imgname)[0];
}
showMenu(imgname);
}
function checkmenu (openmenu,check)
// Check to see if menu is open but not used, if so it is closed
{
if ((overmenu == 0) && (check == overcheck))
{
		if (NS6) 
			menu=document.getElementById(openmenu+"layer")
		else if (NS4)
			menu=eval("document.layers."+openmenu+"layer")
		else
			menu=eval(openmenu+"layer");
	    if (NS4) menu.visibility = "hide"
	    else menu.style.visibility = "hidden"
		//img_inact(openmenu)
}
}
function menutimeout (openmenu)
// Set a .5 second timeout when the menu is not being used to close
{
overcheck=overcheck+1;
setTimeout("checkmenu(openmenu,"+overcheck+")",500);
}
function tocItem (name) {
this.on = new Image();
this.on.src = "/thisweekin/images/" + name + "+on.gif"
this.off = new Image();
this.off.src = "/thisweekin/images/" + name + "+of.gif"
}
function toc_new (name) {
tocItem[name] = new tocItem(name);
}
function img_act (imgName)
// Show Image
{
if (document.images) 
	document[imgName].src = tocItem[imgName].on.src
}
function img_inact (imgName, openmenu)
// Hide Image
{
if (document.images) 
    document[imgName].src = tocItem[imgName].off.src;
}
function menuimg_act(imgName, openmenu) {
if (document.images) {
if ((openmenu == null) || (IE4) || (NS6))
	img_act(imgName)
else
	{
	image= eval("document.layers."+openmenu+"layer.document.images['"+imgName+"']");
	image.src = tocItem[imgName].on.src;
	}
}
overmenu=1;
}
function menuimg_inact(imgName, openmenu, main) {
if (document.images) {
if ((openmenu == null) || (IE4) || (main != null) || (NS6))
	img_inact(imgName)
else
	{
	image= eval("document.layers."+openmenu+"layer.document.images['"+imgName+"']");
	image.src = tocItem[imgName].off.src;
	}
}
menutimeout(openmenu);
overmenu=0;
}