var offsetxpoint=0 //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
var tipobj = null
var g_prefered_position;

function initialiseTipObj()
{
	if (ie||ns6)
	{
		tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : ""
		tipobj.style.position='absolute';
	}
}

function ietruebody()
{
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function showtip(thetext, thecolor, thewidth, prefered_position)
{
  g_prefered_position = prefered_position;
	if (tipobj == null) {
		initialiseTipObj()
	}
	
	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 (tipobj == null) {
		initialiseTipObj()
	}
	
	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";
            

    //tipobj.style.left=curX+offsetxpoint+"px";

		//same concept with the vertical position
		if (bottomedge<tipobj.offsetHeight || g_prefered_position == "top")
		        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 hidetip()
{
	if (tipobj == null) {
		initialiseTipObj()
	}
	
	if (ns6||ie)
	{
		enabletip=false
		tipobj.style.visibility="hidden"
		tipobj.style.left="-1000px"
		//tipobj.style.backgroundColor='#ffffff'
		tipobj.style.width=''
	}
}

document.onmousemove=positiontip