var dom = (document.getElementById) ? true : false;
var ns5 = ((navigator.userAgent.indexOf("Gecko")>-1) && dom) ? true: false;
var ie5 = ((navigator.userAgent.indexOf("MSIE")>-1) && dom) ? true : false;
var ns4 = (document.layers && !dom) ? true : false;
var ie4 = (document.all && !dom) ? true : false;
var nodyn = (!ns5 && !ns4 && !ie4 && !ie5) ? true : false;


var origWidth, origHeight;
if (ns4) {
	origWidth = window.innerWidth; origHeight = window.innerHeight;
	window.onresize = function() { if (window.innerWidth != origWidth
			|| window.innerHeight != origHeight) history.go(0); }
}


if (nodyn) event = "nope";


var tipFollowMouse	= true;
var tipWidth = 200;
var offX = 8;
var offY = 12;
var tipFontFamily = "arial, helvetica, sans-serif";
var tipFontSize	= "8pt";
var tipFontColor = "#222222";
var tipBgColor = "#F6FCE2";
var tipBorderColor = "#798C59";
var tipBorderWidth = 1;
var tipBorderStyle = "solid";
var tipPadding = 4;

var img1 = new Image(100,100);
img1.src = "images/heron.gif";
var img2 = new Image(90,45);
img2.src = "images/duck2.gif";

var tip1 = "Click to view the new snappier tooltip which uses clipping to "
		+ "roll into and out of view"
var tip2 = 'This option can be turned off by setting tipFollowMouse to '
	+ 'false in the cusomization area of the code.';
var tip3 = '<p align="center"><img src="images/heron.gif" border="0"></p>';
var tip4 = '<img src="images/duck2.gif" border="0"><br>Some text can go here too.';



var tooltip, tipcss;
function initTip() {
	if (nodyn) return;
	tooltip = (ns4)? document.tipDiv.document: (ie4)? document.all['tipDiv']:
			(ie5||ns5)? document.getElementById('tipDiv'): null;
	tipcss = (ns4)? document.tipDiv: tooltip.style;
	if (ie4||ie5||ns5) {
		tipcss.width = tipWidth+"px";
		tipcss.fontFamily = tipFontFamily;
		tipcss.fontSize = tipFontSize;
		tipcss.color = tipFontColor;
		tipcss.backgroundColor = tipBgColor;
		tipcss.borderColor = tipBorderColor;
		tipcss.borderWidth = tipBorderWidth+"px";
		tipcss.padding = tipPadding+"px";
		tipcss.borderStyle = tipBorderStyle;
	}
	if (tooltip&&tipFollowMouse) {
		if (ns4) document.captureEvents(Event.MOUSEMOVE);
		document.onmousemove = trackMouse;
	}
}
window.onload = initTip;


var t1,t2;
var tipOn = false;
function doTooltip(evt,txt) {
	if (!tooltip) return;
	if (t1) clearTimeout(t1);	if (t2) clearTimeout(t2);
	tipOn = true;
	if (ns4) {
		tip = '<table bgcolor="' + tipBorderColor + '" width="' + tipWidth
				+ '" cellspacing="0" cellpadding="' + tipBorderWidth
				+ '" border="0"><tr><td><table bgcolor="' + tipBgColor
				+ '" width="100%" cellspacing="0" cellpadding="' + tipPadding
				+ '" border="0"><tr><td><span style="font-family:'
				+ tipFontFamily + '; font-size:' + tipFontSize + '; color:'
				+ tipFontColor + ';">' + txt
				+ '</span></td></tr></table></td></tr></table>';
		tooltip.write(tip);
		tooltip.close();
	} else if (ie4||ie5||ns5) {
		tip = txt;
	 	tooltip.innerHTML = tip;
	}
	if (!tipFollowMouse) positionTip(evt);
	else t1=setTimeout("tipcss.visibility='visible'",100);
}

var mouseX, mouseY;
function trackMouse(evt) {
	mouseX = (ns4||ns5)? evt.pageX: window.event.clientX
			+ document.body.scrollLeft;
	mouseY = (ns4||ns5)? evt.pageY: window.event.clientY
			+ document.body.scrollTop;
	if (tipOn) positionTip(evt);
}


function positionTip(evt) {
	if (!tipFollowMouse) {
		mouseX = (ns4||ns5)? evt.pageX: window.event.clientX
				+ document.body.scrollLeft;
		mouseY = (ns4||ns5)? evt.pageY: window.event.clientY
				+ document.body.scrollTop;
	}

	var tpWd = (ns4)? tooltip.width: (ie4||ie5)? tooltip.clientWidth:
			tooltip.offsetWidth;
	var tpHt = (ns4)? tooltip.height: (ie4||ie5)? tooltip.clientHeight:
			tooltip.offsetHeight;

	var winWd = (ns4||ns5)? window.innerWidth-20+window.pageXOffset:
			document.body.clientWidth+document.body.scrollLeft;
	var winHt = (ns4||ns5)? window.innerHeight+window.pageYOffset:
			document.body.clientHeight+document.body.scrollTop;


	if ((mouseX+offX+tpWd)>winWd)
		tipcss.left = (ns4)? mouseX-(tpWd+offX): mouseX-(tpWd+offX)+"px";
	else tipcss.left = (ns4)? mouseX+offX: mouseX+offX+"px";
	if ((mouseY+offY+tpHt)>winHt)
		tipcss.top = (ns4)? mouseY-(tpHt+offY): mouseY-(tpHt+offY)+"px";
	else tipcss.top = (ns4)? mouseY+offY: mouseY+offY+"px";
	if (!tipFollowMouse) t1=setTimeout("tipcss.visibility='visible'",100);
}

function hideTip() {
	if (!tooltip) return;
	t2=setTimeout("tipcss.visibility='hidden'",100);

	tipOn = false;
}



var newWin = null;
function getSubWin(url) {
 	if (newWin && !newWin.closed) newWin.focus();
	newWin = window.open(url, "subwin",
			"menubar,resizable,scrollbars,height=400,width=550,top=60,left=100");
}


function closeWin() {
	if (newWin && !newWin.closed) window.newWin.close();
}
window.onunload=closeWin;