/*
  Image w/ description tooltip- By Dynamic Web Coding (www.dyn-web.com)
  Copyright 2002 by Sharon Paine
  Visit http://www.dynamicdrive.com for this script

  Adapted by Just One IT GmbH, Ricky Blankenaufulland
  - Changed might break usability for older browsers!
  - Most formatting should be done in CSS now
*/

/* 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;
var offX = 8; // how far from mouse to show tip
var offY = 8;
var fixX = -1;
var fixY = -1;
var tipFontFamily = "Verdana, arial, helvetica, sans-serif";
var tipFontSize = "8pt";

// 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
//messages[0] = new Array('red_balloon.gif','Here is a red balloon on a white background',"#FFFFFF");
//messages[1] = new Array('duck2.gif','Here is a duck on a light blue background.',"#DDECFF");
//messages[2] = new Array('test.gif','Test description','black','white');

////////////////////  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 = '<div align="center" width="100%"><img src="';
var midStr = '" border="0"></div><br />';
var endStr = '';

////////////////////////////////////////////////////////////
//  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;
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, img, hint, tipWidth, cssClass, setOffX, setOffY, fixTipX, fixTipY) {
  if (!tooltip) return;
  if (t1) clearTimeout(t1); if (t2) clearTimeout(t2);
  tipOn = true;
  if (ns4) {
    var tip = '<TABLE bgcolor="' + tipBorderColor + '" width="' + tipWidth + '" cellspacing="0" cellpadding="' + tipBorderWidth + '" border="0"><TR><TD><TABLE width="100%" cellspacing="0" cellpadding="' + tipPadding + '" border="0"><TR><TD>'+ startStr + img + midStr + '<SPAN style="font-family:' + tipFontFamily + '; font-size:' + tipFontSize + '; color:' + curFontColor + ';">' + hint + '</SPAN>' + endStr + '</TD></TR></TABLE></TD></TR></TABLE>';
    tooltip.write(tip);
    tooltip.close();
  } else if (ie4||ie5||ns5) {
    var tip;
    offX = setOffX;
    offY = setOffY;
    fixX = fixTipX;
    fixY = fixTipY;
    if(img.length > 0)
      {
        tip = startStr + img + midStr + hint + endStr;
      }
    else
      {
        tip = hint;
      }
    tooltip.innerHTML = tip;
    if(cssClass.length > 0)
      {
        tooltip.className = cssClass;
      }
    else
      {
        tooltip.className = '';
      }
    if(tipWidth > 0)
      {
        tipcss.width = String(tipWidth)+'px';
      }
    else
      {
        tipcss.width = '';
      }
  }
  if (!tipFollowMouse) positionTip(evt);
  else t1=setTimeout("tipcss.visibility='visible'",100);

  window.status = hint;
}

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 = $('tipDiv').getWidth();
  var tpHt = $('tipDiv').getHeight();

  // document area in view (by Prototype)
  var winWd = document.viewport.getWidth();
  var winHt = document.viewport.getHeight();

  // check mouse position against tip and window dimensions
  // and position the tooltip
  var newTop = 0;
  var newLeft = 0;

  if(fixX > -1)
    {
      newLeft = fixX;
    }
  else if ( (mouseX+offX+tpWd) > winWd)
    {
      newLeft = mouseX - (tpWd + offX);
    }
  else
    {
      newLeft = mouseX + offX;
    }

  if(fixY > -1)
    {
      newTop = fixY;
    }
  else if ( (mouseY+offY+tpHt) > winHt)
    {
      newTop = winHt - (tpHt + offY);
    }
  else
    {
      newTop = mouseY + offY;
    }

  
  tipcss.left = (ns4) ? newLeft : String(newLeft) + 'px';
  tipcss.top = (ns4) ? newTop : String(newTop) + 'px';

  if (!tipFollowMouse) t1=setTimeout("tipcss.visibility='visible'",100);
}

function hideTip() {
  if (!tooltip) return;
  t2=setTimeout("tipcss.visibility='hidden'",100);
  tipOn = false;
  window.status = '';
}