var isNav, isIE, DOM5, docContents, isPC
var brVersion = parseInt(navigator.appVersion);

if (navigator.appName == "Netscape" & brVersion ==4) isNav = true;
if (navigator.appName == "Microsoft Internet Explorer" & brVersion >=4) isIE = true;
if (navigator.appName == "Netscape" & brVersion >=5) DOM5 = true;

if (DOM5) docContents = document.getElementsByTagName("*"); 

var theAgent=navigator.userAgent
if (theAgent.indexOf("Win") != -1) {
	isPC = true
}

var currSect = 0;

// hilite img. preload
// name img = btn1...btn2
for (n = 1;n <= 4; n++) {
	eval("var btn"+n+"on = new Image()");
	eval("btn"+n+"on.src = 'images/btn"+n+"_on.gif'");
}


function icOver(whichimg) {
		if (whichimg == 1 && currSect != 1) { 
		var secColor = "#0099ff";
		} else if (whichimg == 2 && currSect != 2) {
		var secColor = "#33cc00";
		} else if (whichimg == 3 && currSect != 3) {
		var secColor = "#ff9900";
		} else if (whichimg == 4 && currSect != 4) {
		var secColor = "#9966ff";
		} else {
		var secColor = "#003399";
		}
	if (whichimg != currSect) {	
		eval("document.btn"+whichimg+".src = btn"+whichimg+"on.src");
		writeTxt(btntxts[whichimg]);
		if (isNav) document.textbglayer.bgColor = secColor;
		else if (isIE) document.all.textbgdiv.style.backgroundColor = secColor;
		else if (DOM5) docContents['textbgdiv'].style.backgroundColor = secColor;
	}
}

function getSecColor() {
		if (currSect == 0) {
		var secColor = "#003399";
		} else if (currSect == 1) { 
		var secColor = "#0099ff";
		} else if (currSect == 2) {
		var secColor = "#33cc00";
		} else if (currSect == 3) {
		var secColor = "#ff9900";
		} else if (currSect == 4) {
		var secColor = "#9966ff";
		}
	return secColor;
}

function icOut(whichimg) {
	if (whichimg != currSect) {
		eval("document.btn"+whichimg+".src = 'images/btn"+whichimg+".gif'");
		writeTxt(currPage+subPages);
		var secColor = getSecColor();	
		if (isNav) document.textbglayer.bgColor = secColor;
		else if (isIE) document.all.textbgdiv.style.backgroundColor = secColor;
		else if (DOM5) docContents['textbgdiv'].style.backgroundColor = secColor;
	}
}


function writeTxt(theTXT){
    var stytxt ="<Span class='wb10'>&nbsp;";
    var styclose ="<\/Span>";
	newtxt = stytxt + theTXT + styclose;
	if (isNav) {
		var lyr = document.layers['textlayer'].document
		lyr.open()
		lyr.write(newtxt)
		lyr.close()
	}
	else if (isIE) document.all['textdiv'].innerHTML = newtxt;
	else if (DOM5) docContents['textdiv'].innerHTML = newtxt;
}



var deftxt = btntxts[0];

function postxt(){
	var secColor = getSecColor();
	if (isNav) {
		setTimeout("document.textlayer.x = document.btntxt.x+10",10);
		document.textbglayer.x = document.btntxt.x -3;
		setTimeout("document.textlayer.y = document.btntxt.y+5",20);
		document.textbglayer.y = document.btntxt.y;
		document.textbglayer.bgColor = secColor;
	} else if (isIE) {
	document.all.textbgdiv.style.backgroundColor = secColor;
	} else if (DOM5) {
	docContents['textbgdiv'].style.backgroundColor = secColor;
	}
	setTimeout("writeTxt(currPage+subPages)",30);
	if (currSect >0) {
	eval("document.btn"+currSect+".src = btn"+currSect+"on.src");
	}
}

function glossary(word) {
window.open("glossary/"+word+".asp","glossary","status=yes,width=290,height=440,resizable=no,scrollbars=yes,directories=no,toolbar=no,location=no,menubar=no");
}