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 op9 = ((navigator.userAgent.indexOf("Opera")>-1) && dom) ? true : false;
var ns4 = (document.layers && !dom) ? true : false;
var ie4 = (document.all && !dom) ? true : false;
var nodyn = (!ns5 && !ns4 && !ie4 && !ie5 && !op9) ? true : false;
var origWidth, origHeight;

if (nodyn) { event = "nope" }

var tipFollowMouse= true;
var tipWidth= 200;
var offX= 20;
var offY= 12;
var tipFontFamily= "tahoma, arial, helvetica, sans-serif";
var tipFontSize= "8pt";
var tipFontColor= "#000000";
var tipBgColor= "#fdfbe6";
var tipBorderColor= "#000000";
var tipBorderWidth= 1;
var tipBorderStyle= "solid";
var tipPadding= 4;

var startStr = '<table width="' + tipWidth + '"><tr><td valign="top">';
var endStr = '</td></tr></table>';

var tooltip, tipcss;

function initTip() {
 if (nodyn) return;
 tooltip = (ns4) ? document.tipDiv.document : (ie4) ? document.all['tipDiv'] : (ie5||ns5||op9) ? 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;
var t1,t2;
var tipOn = false;

function doTooltip(evt,num) {
 if (!tooltip) return;
 sStr = startStr;
 if (t1) clearTimeout(t1);
 if (t2) clearTimeout(t2);
 tipOn = true;
 curBgColor = tipBgColor;
 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 + messages[num][0] + midStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][0] + '</span>' + endStr + '</td></tr></table></td></tr></table>';
  tooltip.write(tip);
  tooltip.close();
 } else {
  var tip = startStr + '<span style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + messages[num][0] + '</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) {
 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);
}

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;
 }
 var tpWd = (ns4)? tooltip.width: (ie4||ie5)? tooltip.clientWidth: tooltip.offsetWidth;
 var tpHt = (ns4)? tooltip.height: (ie4||ie5)? tooltip.clientHeight: tooltip.offsetHeight;
 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;
 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;
}