/***********************************************
    * 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 = 308;
    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 = 3;
    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

    ////////////////////  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="center" width="100%"><img src="';
    var midStr = '" border="0"></td></tr><tr><td valign="top">';
    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.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 doTooltipA(evt, num, ttw) {
        tipWidth = ttw;
        startStr = '<table width="' + tipWidth + '"><tr><td align="center" width="100%"><img src="';
        initTip();
        
        doTooltip(evt, num);
    }
    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][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; top:1px; left:0px; visibility:hidden; z-index:100"></div>')