if (document.images) {
  image1on = new Image();
  image1on.src = "/graphics/folios_on.gif";
  image2on = new Image();
  image2on.src = "/graphics/archive_on.gif";
  image3on = new Image();
  image3on.src = "/graphics/about_on.gif";
  image4on = new Image();
  image4on.src = "/graphics/home_on.gif";
  image5on = new Image();
  image5on.src = "/graphics/btn_logn_on.gif";
  image6on = new Image();
  image6on.src = "/graphics/btn_subs_on.gif";
  image7on = new Image();
  image7on.src = "/graphics/btn_join_on.gif";
  
  image1off = new Image();
  image1off.src = "/graphics/folios_off.gif";
  image2off = new Image();
  image2off.src = "/graphics/archive_off.gif";
  image3off = new Image();
  image3off.src = "/graphics/about_off.gif";
  image4off = new Image();
  image4off.src = "/graphics/home_off.gif";
  image5off = new Image();
  image5off.src = "/graphics/btn_logn_off.gif";
  image6off = new Image();
  image6off.src = "/graphics/btn_subs_off.gif";
  image7off = new Image();
  image7off.src = "/graphics/btn_join_off.gif";


}

function turnOn(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "on.src");
  }
}

function turnOff(imageName) {
  if (document.images) {
    document[imageName].src = eval(imageName + "off.src");
  }
}

var isNav, ieIE4, isMac

if (parseInt(navigator.appVersion) >= 4)  {
	
	isNav = (navigator.appName == "Netscape")
	isIE4 = (navigator.appName.indexOf("Microsoft") != -1)
	isMac = (navigator.appVersion.indexOf("Mac") != -1)
}

function osCheck()  {
 if (navigator.appVersion.indexOf("Win95") > 0) return "Win95";
 if (navigator.appVersion.indexOf("Win98") > 0) return "Win98";
 if (navigator.appVersion.indexOf("Win16") > 0) return "Win16";
 if (navigator.appVersion.indexOf("Mac") > 0) return "Mac";
 if (navigator.appVersion.indexOf("X11") > 0) return "Unix";
 else return "un_os";
}
				
function brCheck()  {
 if (navigator.appName.substring(0,8) == "Netscape") return "NN";
 if (navigator.appName.substring(0,9) == "Microsoft") return "IE"
 else return "un_br";
}

function getFullYear(d)  {
	if (navigator.appVersion.indexOf("Mac") != -1) {
	   if (navigator.appName.indexOf("Microsoft") != -1)  {
	 		return "1999";
		}
	}
	var y = d.getYear();
	if (y < 1000) y += 1900;
	return y;
}

function makeglosswin()  {

	glosswin = window.open("/glossary.asp", "glossy", "HEIGHT=130,WIDTH=400");
	glosswin.focus();
	
}

function makevideowin()  {

	videowin = window.open("/long_video.asp", "vidbox", "HEIGHT=470,WIDTH=510");
	videowin.focus();
	
}

function loginCookExtract(InString)  {

	cookstart = (InString.indexOf("login="));
	valstart = cookstart + 6;
	valend = valstart + 3;
	loginval = InString.substring(valstart, valend);
	return(loginval);
}

function sessEndWarn()  {

	var islogin = document.cookie;
	var isloginval = loginCookExtract(islogin);
	
	//debugging line
	//alert ('cookies: ' + islogin + ' login: ' + isloginval);
	
	if (isloginval == "yes") {
		//alert ('cookies: ' + islogin + ' login: ' + isloginval);
		setTimeout("maketimeoutwin()", 1200000);
	}
}

function maketimeoutwin()  {

	timeoutwin = window.open("/sesswarning.asp", "timewarning", "HEIGHT=120,WIDTH=330");
	timeoutwin.focus();
	
}

function makerenewedwin()  {
	
	location.href = "/sessrenewed.asp";
	
}

function closemsgwin()  {
	
	window.close();
	
}

function makeexpiredwin()  {
	
	location.href = "/sessexpired.asp";
	
}

function keyReqTest(theform)  {

			theform.submit();
			
}


// 1-May-06 : these functions help fix the "click to run ActiveX control" prompt in IE 

function CreateQT(DivID, QTurl, QTwidth, QTheight)

{
  
  var d = document.getElementById(DivID);
  d.innerHTML = '<EMBED src="/graphics/' + QTurl + '" WIDTH="' + QTwidth + '" HEIGHT="' + QTheight + '" AUTOPLAY="false" CONTROLLER="true" PLUGINSPAGE="http://www.apple.com/quicktime/download/"></EMBED>'

    
}

function CreateSW(DivID, SWurl, SWwidth, SWheight)  {
  
  var d = document.getElementById(DivID);
  d.innerHTML = '<EMBED src="/graphics/' + SWurl + '" WIDTH="' + SWwidth + '" HEIGHT="' + SWheight + '" AUTOPLAY="false" CONTROLLER="true" PLUGINSPAGE="http://www.adobe.com/shockwave/download/"></EMBED>'

    
}

function CreateImg(DivID, IMGurl)  {
  
  var j = document.getElementById(DivID);
  j.innerHTML = '<img src="/graphics/' + IMGurl + '" border="0" alt="">'

    
}