var offsetxpoint=-60; //Customize x offset of tooltip
var offsetypoint=20; //Customize y offset of tooltip
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") : "";

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

function ddrivetip(thetext, thecolor, thewidth){
  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 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 rightedge=ie&&!window.opera? ietruebody().clientWidth-event.clientX-offsetxpoint : window.innerWidth-e.clientX-offsetxpoint-20;
    var bottomedge=ie&&!window.opera? ietruebody().clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20;

    var leftedge=(offsetxpoint<0)? offsetxpoint*(-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=ie? ietruebody().scrollLeft+event.clientX-tipobj.offsetWidth+"px" : window.pageXOffset+e.clientX-tipobj.offsetWidth+"px";
    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+offsetxpoint+"px";

    //same concept with the vertical position
    if (bottomedge<tipobj.offsetHeight)
      tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px";
    else
      tipobj.style.top=curY+offsetypoint+"px";
      tipobj.style.visibility="visible";
  }
}

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

document.onmousemove=positiontip;