/*
Image w/ description tooltip- By Dynamic Web Coding (www.dyn-web.com)
Copyright 2002 by Sharon Paine
Visit http://www.dynamicdrive.com for this script
*/

/* IMPORTANT: Put script after tooltip div or 
put tooltip div just before </BODY>. */

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= 450;
var offX= 10; // how far from mouse to show tip
var offY= 5; 
var tipFontFamily= "sans-serif";
var tipFontSize= "10pt";
// 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 tipFontColor= "#000000";
var tipBgColor= "#DDECFF"; 
var tipBorderColor= "#000080";
var tipBorderWidth= 1;
var tipBorderStyle= "solid";
var tipPadding= 4;
var messages = new Array();
//////////////////// END OF CUSTOMIZATION AREA ///////////////////


////////////////////////////////////////////////////////////
// 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 = 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;


/////////////////////////////////////////////////
// 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(evt,num) {
   if (!tooltip) return;
   if (t1) clearTimeout(t1); if (t2) clearTimeout(t2);
   tipOn = true;
// set colors if included in messages array
   if (messages[num][1]) var curBgColor = messages[num][1];
   else curBgColor = tipBgColor;
   if (messages[num][2]) var curFontColor = messages[num][2];
   else curFontColor = tipFontColor;
   if (ns4) {
      var tip = '<table bgcolor="' + tipBorderColor + '" width="' + tipWidth + '" cellspacing="0" cellpadding="' + tipBorderWidth + '" border="0"><tr><td><table bgcolor="' + curBgColor + '" width="100%" cellspacing="0" cellpadding="' + tipPadding + '" border="0"><tr><td><span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][0] + '</span></td></tr></table></td></tr></table>';
      tooltip.write(tip);
      tooltip.close();
   } else if (ie4||ie5||ns5) {
      var tip = '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][0] + '</span>';
      tipcss.backgroundColor = curBgColor;
      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;
}