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;

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

// 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= 160;
var offX= 20; // how far from mouse to show tip
var offY= 12; 
var tipFontFamily= "Arial, Helvetica, sans-serif";
var tipFontSize= "2pt";
// 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 tipFontTitleColor= "#FFFFFF";
var tipFontDescColor= "#000000";
var tipBgTitleColor= "#6666CC"; 
var tipBgDescColor= "#D6D7EF";

var tipBorderWidth= 1;
var tipBorderColor="#6666CC";//"#FFCC66";
var tipBorderStyle= "none";
var tipBorderStyle= "solid";
var tipPadding= 1;



////////////////////////////////////////////////////////////
// initTip - initialization for tooltip.
// Global variables for tooltip. 
// Set styles for all but ns4. 
// Set up mousemove capture if tipFollowMouse set true.
////////////////////////////////////////////////////////////
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) { // ns4 would lose all this on rewrites
tipcss.width = tipWidth+"px";
tipcss.fontFamily = tipFontFamily;
tipcss.fontSize = tipFontSize;
tipcss.color = tipFontDescColor;
tipcss.backgroundColor = tipBgDescColor;

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;

/////////////////////////////////////////////////
// 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(icon,evt,title,desc) {
if (!tooltip) return;
if (t1) clearTimeout(t1); if (t2) clearTimeout(t2);
tipOn = true;
// set colors if included in messages array


if (ns4) {
var tip = '<table width="250" border="0" cellspacing="0" cellpadding="0"><tr align="left" valign="top"> <td valign="top" bgcolor="' + tipBgTitleColor + '" width="20">'+'<div valign="top" align="left"><img src="'+ icon +'" width="20" height="20" align="top"></div></td><td bgcolor="' + tipBgTitleColor + '" width="230">&nbsp;<font face="'+tipFontFamily+'" size="'+tipFontSize+'" color="'+tipFontTitleColor+'"><b>'+title+'</b></font></td></tr>'+'<tr align="left" valign="top"><td bgcolor="' + tipBgDescColor + '" colspan="2" width="250"><font face="'+tipFontFamily+'" size="'+tipFontSize+'" color="'+tipFontDescColor+'">'+desc+'</font></td></tr></table>';
tooltip.write(tip);
tooltip.close();
} else if (ie4||ie5||ns5) {
var tip = '<table width="250" border="0" cellspacing="0" cellpadding="0"><tr align="left" valign="top"> <td valign="top" bgcolor="' + tipBgTitleColor + '" width="20">'+'<div valign="top" align="left"><img src="'+ icon +'" width="20" height="20" align="top"></div></td><td bgcolor="' + tipBgTitleColor + '" width="230">&nbsp;<font face="'+tipFontFamily+'" size="'+tipFontSize+'" color="'+tipFontTitleColor+'"><b>'+title+'</b></font></td></tr>'+'<tr align="left" valign="top"><td bgcolor="' + tipBgDescColor + '" colspan="2" width="250"><font face="'+tipFontFamily+'" size="'+tipFontSize+'" color="'+tipFontDescColor+'">'+desc+'</font></td></tr></table>';
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);
}

/////////////////////////////////////////////////////////////
// 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) {
mouseX = (ns4||ns5)? evt.pageX: window.event.clientX + document.body.scrollLeft;
mouseY = (ns4||ns5)? evt.pageY: window.event.clientY + document.body.scrollTop;
}
// tooltip width and height
var tpWd = (ns4)? tooltip.width: (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
var tpHt = (ns4)? tooltip.height: (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
// document area in view (subtract scrollbar width for ns)
var winWd = (ns4||ns5)? window.innerWidth-20+window.pageXOffset: document.body.clientWidth+document.body.scrollLeft;
var winHt = (ns4||ns5)? window.innerHeight-20+window.pageYOffset: document.body.clientHeight+document.body.scrollTop;
// check mouse position against tip and window dimensions
// and position the tooltip 
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)? winHt-(tpHt+offY): winHt-(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;
}