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;

  if (nodyn) { event = "nope" }

  var tipFollowMouse= true;

  var tipWidth= 250;
  var offX= 20;	// how far from mouse to show tip
  var offY= 30;
  var tipFontFamily= "Verdana, arial, helvetica, sans-serif";
  var tipFontSize= "8pt";

  var tipFontColor= "#000000";
  var tipBgColor= "#ffffff";
  var tipBorderColor= "#7ec53b";
  var tipBorderWidth= 1;
  var tipBorderStyle= "ridge";
  var tipPadding= 2;

//var messages = new Array();
  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>';

  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) {
      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;

  var t1,t2;
  var tipOn = false;
  function doTooltip(evt,messages) {
    if (!tooltip) return;
    if (t1) clearTimeout(t1);
    if (t2) clearTimeout(t2);
    tipOn = true;

    curBgColor = tipBgColor;
    curFontColor = tipFontColor;
    if (ie4||ie5||ns5) {
      var tip = startStr + messages + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + '' + '</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);
  }

  function positionTip(evt) {
    if (!tipFollowMouse) {
      mouseX = (ns5)? evt.pageX: window.event.clientX + standardbody.scrollLeft;
      mouseY = (ns5)? evt.pageY: window.event.clientY + standardbody.scrollTop;
    }

    var tpWd = (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
    var tpHt = (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;

    var winWd = (ns5)? window.innerWidth-20+window.pageXOffset: standardbody.clientWidth+standardbody.scrollLeft;
    var winHt = (ns5)? window.innerHeight-20+window.pageYOffset: standardbody.clientHeight+standardbody.scrollTop;

    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>')