function pw() {return window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth};
function mouseX(evt) {return evt.clientX ? evt.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) : evt.pageX;}
function mouseY(evt) {return evt.clientY ? evt.clientY + (document.documentElement.scrollTop || document.body.scrollTop) : evt.pageY}
function ShowTip(evt,t) {if (document.getElementById) {var wp = pw(); dm = document.getElementById("tooltip"); dm.innerHTML=t; ds = dm.style; st = ds.visibility; if (dm.offsetWidth) ew = dm.offsetWidth; else if (dm.clip.width) ew = dm.clip.width; if (st == "visible" || st == "show") { ds.visibility = "hidden"; } else {tv = mouseY(evt) + 20; lv = mouseX(evt) - (ew/4); if (lv < 2) lv = 2; else if (lv + ew > wp) lv -= ew/2; lv += 'px';tv += 'px';  ds.left = lv; ds.top = tv; ds.visibility = "visible";}}}

function HideTip() {document.getElementById("tooltip").style.visibility="hidden";}