/***********************************************
* 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 = ((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= 150;
var offX= 10;     // how far from mouse to show tip
var offY= 18;
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= "#FFFFFF";
var tipBorderColor= "#c7c7c7";
var tipBorderWidth= 4;
var tipBorderStyle= "solid";
var tipPadding= 0;

// 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


////////////////////  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 + '"><tr><td align="left" width="100%" style="color: #CC0000;"><strong>';
var midStr = '</strong></td></tr><tr><td valign="top">';
var endStr = '</td></tr></table>';

////////////////////////////////////////////////////////////
//  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,message) {
     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 (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>'+ startStr + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + message + '</span>' + endStr + '</td></tr></table></td></tr></table>';
          tooltip.write(tip);
          tooltip.close();
     } else if (ie4||ie5||ns5) {
          var tip = startStr + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + message + '</span>' + endStr;
          //var tip = startStr + messages[num][0] + midStr + endStr;
          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;
}

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