/***********************************************
        * 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= 300;
        var offX= 20;    // how far from mouse to show tip
        var offY= 12;
        var tipFontFamily= "Tahoma, Verdana, arial, helvetica, sans-serif";
        var tipFontSize= "12pt";
        // 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 width="300px" ';
        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 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 + '<center><span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][1] + '</span></center>' + 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>')