//verifica o navegador
sAgent = navigator.userAgent;
bIsIE = sAgent.indexOf("MSIE") > -1;
bIsNav = sAgent.indexOf("Mozilla") > -1 && !bIsIE;

//setando as variaveis de controle de eventos do mouse
var xmouse = 0;
var ymouse = 0;
document.onmousemove = MouseMove;

//funcoes de controle de eventos do mouse:
function MouseMove(e){
if (e) { MousePos(e); } else { MousePos();}
}

function MousePos(e) {
if (bIsNav){
 xmouse = e.pageX;
 ymouse = e.pageY;
} 
if (bIsIE) {
 xmouse = document.body.scrollLeft + event.x;
 ymouse = document.body.scrollTop + event.y;
}
}

//funcao que mostra e esconde o hint
function Hint(objNome, action){
//action = 1 -> Esconder
//action = 2 -> Mover

if (bIsIE) {
 objHint = document.all[objNome]; 
}
if (bIsNav) {
 objHint = document.getElementById(objNome);
 event = objHint;
}

switch (action){
 case 1: //Esconder
  objHint.style.visibility = "hidden";
  break;
 case 2: //Mover
  objHint.style.visibility = "visible";
  objHint.style.left = xmouse + 15;
  objHint.style.top = ymouse + 15;
  break;
}

}