var ns4 = (document.layers)? true:false 
            var ie4 = (document.all)? true:false 
            var ns6 = (document.getElementById && !document.all) ? true: false; 
            var coorX, coorY; 

            if (ns6) document.addEventListener("mousemove", mouseMove, true) 
            if (ns4) {document.captureEvents(Event.MOUSEMOVE); document.mousemove = mouseMove;} 

            function mouseMove(e)    { 
                if (ns4||ns6)    { 
                    coorX = e.pageX; 
                    coorY = e.pageY; 
                } 
                if (ie4)    { 
                    coorX = event.x; 
                    coorY = event.y; 
                } 
                coorX += document.body.scrollLeft; 
                coorY += document.body.scrollTop; 
                return true; 
            } 

            function ini()    { 
                if (ie4)    document.body.onmousemove = mouseMove; 
            } 

            function mostrar(nombreDiv)    { 
                with(document.getElementById(nombreDiv))    { 
                    style.top = coorY + 10; 
                    style.left = coorX + 10; 
                    style.visibility = "visible"; 
                } 
            } 

            function ocultar(nombreDiv)    { 
                document.getElementById(nombreDiv).style.visibility = "hidden"; 
            } 

            function mover(nombreDiv)    { 
                with(document.getElementById(nombreDiv))    { 
                    style.top = coorY + 10; 
                    style.left = coorX + 10; 
                } 
            }