// Extended Tooltip Javascript
// copyright 9th August 2002, 3rd July 2005, 24th August 2008
// by Stephen Chapman, Felgall Pty Ltd

// permission is granted to use this javascript provided that the below code is not altered
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 popUp(evt,oi) {
if (document.getElementById) {var wp = pw(); dm = document.getElementById(oi);
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";
}
}
}