var offsetfromcursorX=12 //Customize x offset of tooltip
var offsetfromcursorY=10 //Customize y offset of tooltip

var offsetdivfrompointerX=10 //Customize x offset of tooltip DIV relative to pointer image
var offsetdivfrompointerY=14 //Customize y offset of tooltip DIV relative to pointer image. Tip: Set it to (height_of_pointer_image-1).

document.write('<div id="dhtmltooltip"></div>') //write out tooltip DIV
document.write('<img id="dhtmlpointer">') //write out pointer image

var ie=document.all
var ns6=document.getElementById && !document.all
var enabletip=false
if (ie||ns6)
var tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : ""

var pointerobj=document.all? document.all["dhtmlpointer"] : document.getElementById? document.getElementById("dhtmlpointer") : ""

function ietruebody() {
  return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function ddrivetip(thetext, thewidth, thecolor) {
  if (ns6||ie) {
    if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px"
    if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor
    tipobj.innerHTML=thetext
    enabletip=true
    return false
  }
}

function positiontip(e) {
  if (enabletip) {
  var nondefaultpos=false
  var curX=(ns6)?e.pageX : event.clientX+ietruebody().scrollLeft;
  var curY=(ns6)?e.pageY : event.clientY+ietruebody().scrollTop;
  //Find out how close the mouse is to the corner of the window
  var winwidth=ie&&!window.opera? ietruebody().clientWidth : window.innerWidth-20
  var winheight=ie&&!window.opera? ietruebody().clientHeight : window.innerHeight-20

  var rightedge=ie&&!window.opera? winwidth-event.clientX-offsetfromcursorX : winwidth-e.clientX-offsetfromcursorX
  var bottomedge=ie&&!window.opera? winheight-event.clientY-offsetfromcursorY : winheight-e.clientY-offsetfromcursorY

  var leftedge=(offsetfromcursorX<0) ? offsetfromcursorX*(-1) : -1000

  //if the horizontal distance isn't enough to accomodate the width of the context menu
  if (rightedge<tipobj.offsetWidth) {
    //move the horizontal position of the menu to the left by it's width
    tipobj.style.left=curX-tipobj.offsetWidth+"px"
    nondefaultpos=true
  }
  else if (curX<leftedge)
    tipobj.style.left="5px"
  else {
    //position the horizontal position of the menu where the mouse is positioned
    tipobj.style.left=curX+offsetfromcursorX-offsetdivfrompointerX+"px"
    pointerobj.style.left=curX+offsetfromcursorX+"px"
  }

  //same concept with the vertical position
  if (bottomedge<tipobj.offsetHeight) {
    tipobj.style.top=curY-tipobj.offsetHeight-offsetfromcursorY+"px"
    nondefaultpos=true
  }
  else {
    tipobj.style.top=curY+offsetfromcursorY+offsetdivfrompointerY+"px"
    pointerobj.style.top=curY+offsetfromcursorY+"px"
  }
  tipobj.style.visibility="visible"
  if (!nondefaultpos)
    pointerobj.style.visibility="visible"
  else
    pointerobj.style.visibility="hidden"
  }
}

function hideddrivetip() {
  if (ns6||ie) {
    enabletip=false
    tipobj.style.visibility="hidden"
    pointerobj.style.visibility="hidden"
    tipobj.style.left="-1000px"
    tipobj.style.backgroundColor=''
    tipobj.style.width=''
  }
}

document.onmousemove=positiontip