https://koreaarttv.com/js/happy_main_nmap.js

1var offsetxpoint=5 //Customize x offset of tooltip
2var offsetypoint=2 //Customize y offset of tooltip
3var ie=document.all
4var ns6=document.getElementById && !document.all
5var enabletip=false
6if (ie||ns6)
7	var tipobj=document.all? document.all["dhtmltooltipNMap"] : document.getElementById? document.getElementById("dhtmltooltipNMap") : ""
8	//var tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : ""
9
10function ietruebody(){
11	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
12}
13
14function ddrivetipNMap(thetext, thecolor, thewidth){
15	if (ns6||ie){
16		if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px"
17			if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor
18				tipobj.innerHTML=thetext
19		enabletip=true
20		return false
21	}
22}
23
24function positiontip(e){
25	if (enabletip){
26		var curX=(ns6)?e.pageX : event.clientX+ietruebody().scrollLeft;
27		var curY=(ns6)?e.pageY : event.clientY+ietruebody().scrollTop;
28		//Find out how close the mouse is to the corner of the window
29		var rightedge=ie&&!window.opera? ietruebody().clientWidth-event.clientX-offsetxpoint : window.innerWidth-e.clientX-offsetxpoint-20
30		var bottomedge=ie&&!window.opera? ietruebody().clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20
31
32		var leftedge=(offsetxpoint<0)? offsetxpoint*(-1) : -1000
33
34		//if the horizontal distance isn't enough to accomodate the width of the context menu
35		if (rightedge<tipobj.offsetWidth)
36			//move the horizontal position of the menu to the left by it's width
37			tipobj.style.left=ie? ietruebody().scrollLeft+event.clientX-tipobj.offsetWidth+"px" : window.pageXOffset+e.clientX-tipobj.offsetWidth+"px"
38		else if (curX<leftedge)
39			tipobj.style.left="5px"
40		else
41			//position the horizontal position of the menu where the mouse is positioned
42			tipobj.style.left=curX+offsetxpoint+"px"
43
44		//same concept with the vertical position
45		if (bottomedge<tipobj.offsetHeight)
46			tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px"
47		else
48			tipobj.style.top=curY+offsetypoint+"px"
49		tipobj.style.visibility="visible"
50	}
51}
52
53function hideddrivetip(){
54	if (ns6||ie){
55		enabletip=false
56		tipobj.style.visibility="hidden"
57		tipobj.style.left="-1000px"
58		tipobj.style.backgroundColor=''
59		tipobj.style.width=''
60	}
61}
62
63document.onmousemove=positiontip