// JavaScript Document
/***********************************************
* Image w/ description tooltip- By Dynamic Web Coding (www.dyn-web.com)
* Copyright 2002-2007 by Sharon Paine
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/

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

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 tipHeight= 400;
var offX= 20; // how far from mouse to show tip
var offY= 12; 
var tipFontFamily= "Verdana, arial, helvetica, sans-serif";
var tipFontSize= "8pt";
// 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= "ridge";
var tipPadding= 4;

// tooltip content goes here (image, description, optional bgColor, optional textcolor)
var messages = new Array();
// multi-dimensional arrays containing: 
// image and text for tooltip
// optional: bgColor and color to be sent to tooltip
/*messages[0] = new Array('red_balloon.gif','Here is a red balloon on a white background',"#FFFFFF");
messages[1] = new Array('duck2.gif','Here is a duck on a light blue background.',"#DDECFF");

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

// preload images that are to appear in tooltip
// from arrays above
if (document.images) {
 var theImgs = new Array();
 for (var i=0; i<messages.length; i++) {
   theImgs[i] = new Image();
  theImgs[i].src = messages[i][0];
  }
}*/

// 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 + '" height="' + tipHeight + '"><tr><td align="center" width="100%"><img src="';
//var midStr = '" border="0" ></td></tr><tr><td valign="top">';
//var endStr = '</td></tr></table>';


var startStr = '<table border="0" cellspacing="0" cellpadding="0" bgcolor="#999999"><tr><td align="left" valign="top"><img src="';
var midStr = '" border="0" >';
var endStr = '</td></tr></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.height = tipHeight+"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) {
  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,imagename) {

messages[0] = new Array(imagename,'',"#FFFFFF");
//messages[1] = new Array('duck2.gif','Here is a duck on a light blue background.',"#DDECFF");

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

// preload images that are to appear in tooltip
// from arrays above
 if (document.images) {
  var theImgs = new Array();
  for (var i=0; i<messages.length; i++) {
     theImgs[i] = new Image();
   theImgs[i].src = messages[i][0];
   }
 }

 if (!tooltip) return;
 if (t1) clearTimeout(t1); if (t2) clearTimeout(t2);
 tipOn = true;
 // set colors if included in messages array
 if (messages[num][2]) var curBgColor = messages[num][2];
 else curBgColor = tipBgColor;
 if (messages[num][3]) var curFontColor = messages[num][3];
 else curFontColor = tipFontColor;
 if (ie4||ie5||ns5) {
  var tip = startStr + messages[num][0] + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span>' + endStr;
  tipcss.backgroundColor = curBgColor;
   tooltip.innerHTML = tip;
 }
 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-20+window.pageXOffset: standardbody.clientWidth+standardbody.scrollLeft;
 var winHt = (ns5)? window.innerHeight-20+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; visibility:hidden; z-index:100;"></div>')