var offsetfromcursorX=20 //Customize x offset of tooltip
var offsetfromcursorY=10 //Customize y offset of tooltip

var offsetxpoint=-30 //Customize x offset of tooltip
var offsetypoint=24 //Customize y offset of tooltip
//document.write('<div id="dhtmltooltip" class="dhtmltooltip"></div>') //write out tooltip DIV
//document.write('<img id="dhtmlpointer" class="dhtmlpointer" src="js/arrow2.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 ddrivetip(tieude,thetext,hinhanh,thecolor,thewidth){
if (ns6||ie){
if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px"
if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor;
if(hinhanh!="noimage")
{
tipobj.innerHTML="<table><tr><td width='70px' rowspan='2'><div style='border-color:gray;text-align:center'><img src='"+hinhanh+"' width='70px' height='70px'/></div></td><td align='left' style='font-weight:bold;font-family:arial;font-size:8pt;color:blue'>"+tieude+"</td></tr><tr><td align='left'>"+thetext+"</td></tr></table>";
}
else
{
tipobj.innerHTML="<table><tr><td align='left' style='font-weight:bold;font-family:arial;font-size:8pt;color:blue'>"+tieude+"</td></tr><tr><td align='left'>"+thetext+"</td></tr></table>";
}
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 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"
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+offsetxpoint+"px"
pointerobj.style.left=curX+offsetfromcursorX+"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"
nondefaultpos=true;
}
else
{
tipobj.style.top=curY+offsetypoint+"px"
pointerobj.style.top=curY+offsetfromcursorY+"px"
tipobj.style.visibility="visible"
}
if (!nondefaultpos)
pointerobj.style.visibility="visible"
else
pointerobj.style.visibility="hidden"

}
}
function ddrivetiptuan(NgayGioiHanHoc)
{
    if (ns6||ie)
    {
        var thewidth=170;
        if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px"
        tipobj=document.getElementById("dhtmltooltip2");
        tipobj.innerHTML="<table CellPadding='0' border='0' CellSpacing='0' style='text-align:left;font-size:10pt;font-family:tahoma;background-color:#2E6C92; color:White; '><tr height='20px'><td align='center' >"+NgayGioiHanHoc+"</td></tr></table>";
        enabletip=true
        return false
    }
}
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