function shimit(obj){
if (typeof shim=='undefined')
return;
var shimobj=document.getElementById('shim').style;
if (!nondefaultpos){
var shimobj2=document.getElementById('shim2').style;
shimobj2.width=pointerobj.offsetWidth+'px';
shimobj2.height=pointerobj.offsetHeight+'px';
shimobj2.top=pointerobj.style.top;
shimobj2.left=pointerobj.style.left;
shimobj2.zIndex=99;
shimobj2.display='block';
}
shimobj.height=obj.offsetHeight+'px';
shimobj.width=obj.offsetWidth+'px';
var obj=obj.style;
shimobj.left=obj.left;
shimobj.top=obj.top;
shimobj.zIndex=99;
shimobj.display='block';
}

function noshim(){
if (typeof shim=='undefined')
return;
document.getElementById('shim').style.display='none';
document.getElementById('shim2').style.display='none';
}

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=-1; //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" src="./images/trans.gif">'); //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 tip(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){
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";

shimit(tipobj);
if (!nondefaultpos)
pointerobj.style.visibility="visible";
else
pointerobj.style.visibility="hidden";
}
}

function hidetip(){
if (ns6||ie){
enabletip=false;
tipobj.style.visibility="hidden";

noshim();
pointerobj.style.visibility="hidden";
tipobj.style.left="-1000px";
tipobj.style.backgroundColor='';
tipobj.style.width='';
}
}

document.onmousemove=positiontip;