wmtt = null; document.onmousemove = updateWMTT; 
function updateWMTT(e) { 
if (wmtt != null) 
{ 
x = (document.all) ? window.event.x + wmtt.offsetParent.scrollLeft : e.pageX; 
y = (document.all) ? window.event.y + wmtt.offsetParent.scrollTop : e.pageY; 

 } 
} 
function showWMTT(id) { 
wmtt = document.getElementById(id); 
wmtt.style.display = "block" 
} 
function hideWMTT() { 
wmtt.style.display = "none"; 
}