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 toggletip(thetext, thecolor, thewidth)
{
	if (tipobj.style.visibility == "visible")
		hideddrivetip();
	else
		ddrivetip(thetext, thecolor, thewidth);
}

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.x + ietruebody().scrollLeft);
		var curY = (ns6 ? e.pageY : event.y + 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;