var enabletip=false;
var ie=document.all;
var ns6=document.getElementById && !document.all;
var offsetxpoint=-60;
var offsetypoint=20;
var divid="popup";

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

function ddrivetip(ttText, thecolor, thewidth){
	if (ns6||ie){
	    var tipobj=$(divid);
		if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px";
		if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor;
		//prendiElementoDaId(divid,extension,'');
		tipobj.innerHTML=ttText;
		enabletip=true;
		return false;
	}
}

function positiontip(e){
	var tipobj=$(divid);
	if (enabletip){
		var curX=(ns6)?e.pageX : event.x+ietruebody().scrollLeft;
		var curY=(ns6)?e.pageY : event.y+ietruebody().scrollTop;
	
		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 (rightedge<tipobj.offsetWidth)
			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
	
		tipobj.style.left=curX+offsetxpoint+"px";
	
		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(){
	var tipobj=$(divid);
	if (ns6||ie){
		enabletip=false;
		tipobj.style.visibility="hidden";
		tipobj.style.left="-1000px";
		tipobj.style.backgroundColor='';
		tipobj.style.width='';
	}
}

document.onmousemove=positiontip;