var posx; var posy;

function showToolTip(text,e) {
posx = 0; posy = 0;
var toolTip = document.getElementById('spnToolTip');
if (navigator.userAgent.indexOf("Firefox") != -1) {
    if (!e) var e = window.event;
    if (e.pageX || e.pageY) {
        posx = e.pageX;
        posy = e.pageY;
    }
}
else {
    posy = window.event.clientY + 10;
    posx = window.event.clientX;
}

toolTip.style.top = posy;
toolTip.style.left = posx;
toolTip.innerHTML = text;
toolTip.style.visibility = 'visible';
toolTip.style.background = 'lightyellow';
}

function hideToolTip() {
document.getElementById('spnToolTip').style.visibility = 'hidden';
}