var offsetfromcursorX = 12;
var offsetfromcursorY = 10;
var offsetdivfrompointerX = 10;
var offsetdivfrompointerY = 14;

document.write('<div id="dhtmltooltip"></div>');
document.write('<img id="dhtmlpointer" src="Images/tooltiparrow.gif">');

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 showtip(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;

        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 (rightedge < tipobj.offsetWidth) {
            tipobj.style.left = curX - tipobj.offsetWidth + "px";
            nondefaultpos = true;
        }
        else if (curX < leftedge)
            tipobj.style.left = "5px";
        else {
            tipobj.style.left = curX + offsetfromcursorX - offsetdivfrompointerX + "px";
            pointerobj.style.left = curX + offsetfromcursorX + "px";
        }

        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 hidetip() {
    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;