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

var origWidth, origHeight;

// avoid error of passing event object in older browsers
if (nodyn) {
	event = "nope";
}

///////////////////////  CUSTOMIZE HERE   ////////////////////
// settings for tooltip
// Do you want tip to move when mouse moves over link?
var tipFollowMouse = true;
// Be sure to set tipWidth wide enough for widest image
var tipWidth = 400;
var offX = 20;	// how far from mouse to show tip
var offY = 5;

// set default text color and background color for tooltip here
// individual tooltips can have their own (set in messages arrays)
// but don't have to
var tipBgColor = "#FFFFFF";
var tipBorderColor = "#ab9f9c";
var tipBorderWidth = 1;
var tipBorderStyle = "ridge";
var tipPadding = 0;

////////////////////  END OF CUSTOMIZATION AREA  ///////////////////

// preload images that are to appear in tooltip
// from arrays above
if (document.images) {
	var theImgs = new Array();
}

// to layout image and text, 2-row table, image centered in top cell
// these go in var tip in doTooltip function
// startStr goes before image, midStr goes between image and text
var startStr = '<table width="' + tipWidth + '" cellpadding="0" cellspacing="0"><tr><td align="center" width="100%"><img src="';
var midStr = '" border="0"></td></tr>';
var endStr = '</table>';

////////////////////////////////////////////////////////////
//  initTip	- initialization for tooltip.
//		Global variables for tooltip.
//		Set styles
//		Set up mousemove capture if tipFollowMouse set true.
////////////////////////////////////////////////////////////
var tooltip, tipcss;
function initTip() {
	if (nodyn) {
		return;
	}
	tooltip = (ie4)? document.all['tipDiv']: (ie5||ns5)? document.getElementById('tipDiv'): null;
	tipcss = tooltip.style;
	if (ie4||ie5||ns5) {	// ns4 would lose all this on rewrites
		tipcss.width = tipWidth+"px";
		tipcss.backgroundColor = tipBgColor;
		tipcss.borderColor = tipBorderColor;
		tipcss.borderWidth = tipBorderWidth+"px";
		tipcss.padding = tipPadding+"px";
		tipcss.borderStyle = tipBorderStyle;
	}
	if (tooltip&&tipFollowMouse) {
		document.onmousemove = trackMouse;
	}
}

window.onload = initTip;

/////////////////////////////////////////////////
//  doTooltip function
//			Assembles content for tooltip and writes
//			it to tipDiv
/////////////////////////////////////////////////
var t1, t2;	// for setTimeouts
var tipOn = false;	// check if over tooltip link
function doTooltip(URL) {
	if (!tooltip) {
		return;
	}
	if (t1) {
		clearTimeout(t1);
	}
	if (t2) {
		clearTimeout(t2);
	}
	tipOn = true;
	// set colors if included in messages array
	curBgColor = tipBgColor;
	if (ie4||ie5||ns5) {
		var tip = startStr + URL + midStr + endStr;
		tipcss.backgroundColor = curBgColor;
		tooltip.innerHTML = tip;
	}
	if (!tipFollowMouse) {
		positionTip(evt);
	} else {
		t1 = setTimeout("tipcss.visibility='visible'", 100);
	}
}

var t1, t2;	// for setTimeouts
var tipOn = false;	// check if over tooltip link
function doTooltipKrak(URL) {
	if (!tooltip) {
		return;
	}
	if (t1) {
		clearTimeout(t1);
	}
	if (t2) {
		clearTimeout(t2);
	}
	tipOn = true;
	// set colors if included in messages array
	curBgColor = tipBgColor;
	if (ie4||ie5||ns5) {
		var tip = startStr + URL + midStr + endStr;
		tipcss.backgroundColor = curBgColor;
		tipcss.padding="0px";
		tipcss.border="0px";
		tipcss.margin="0px";
		tooltip.innerHTML = tip;
		// append a red dot to image
		var redcircle = document.createElement('div');
		redcircle.style.position = "absolute";
		redcircle.style.top="10px"
		redcircle.style.left="10px";
		redcircle.innerHTML = '<img src="images/mark.gif" alt="" />';
		document.getElementById('tipDiv').appendChild(redcircle);
	}
	if (!tipFollowMouse) {
		positionTip(evt);
	} else {
		t1 = setTimeout("tipcss.visibility='visible'", 100);
	}
}

var mouseX, mouseY;
function trackMouse(evt) {
	standardbody = (document.compatMode == "CSS1Compat")? document.documentElement : document.body //create reference to common "body" across doctypes
	mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
	mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
	if (tipOn) {
		positionTip(evt);
	}
}

/////////////////////////////////////////////////////////////
//  positionTip function
//		If tipFollowMouse set false, so trackMouse function
//		not being used, get position of mouseover event.
//		Calculations use mouseover event position,
//		offset amounts and tooltip width to position
//		tooltip within window.
/////////////////////////////////////////////////////////////
function positionTip(evt) {
	if (!tipFollowMouse) {
		standardbody = (document.compatMode=="CSS1Compat")? document.documentElement : document.body
		mouseX = (ns5)? evt.pageX: window.event.clientX - standardbody.scrollLeft;
		mouseY = (ns5)? evt.pageY: window.event.clientY - standardbody.scrollTop;
	}
	// tooltip width and height
	var tpWd = (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
	var tpHt = (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
	// document area in view (subtract scrollbar width for ns)
	var winWd = (ns5)? window.innerWidth + window.pageXOffset: standardbody.clientWidth+standardbody.scrollLeft;
	var winHt = (ns5)? window.innerHeight + window.pageYOffset: standardbody.clientHeight+standardbody.scrollTop;
	// check mouse position against tip and window dimensions
	// and position the tooltip
	if ((mouseX+offX+tpWd)>winWd) {
		tipcss.left = mouseX - (tpWd + offX) + "px";
	} else {
		tipcss.left = mouseX + offX + "px";
	}
	if ((mouseY+offY+tpHt)>winHt) {
		tipcss.top = winHt - (tpHt + offY) + "px";
	} else {
		tipcss.top = mouseY + offY + "px";
	}
	if (!tipFollowMouse) {
		t1 = setTimeout("tipcss.visibility='visible'", 100);
	}
}

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

document.write('<div id="tipDiv" style="position:absolute; top:100px; left:100px; visibility:hidden; z-index:100"></div>')