自我介紹
lastScrollY = 0;
function floathelp() {
var diffY;
if (document.documentElement && document.documentElement.scrollcenter)
{ diffY = document.documentElement.scrollcenter; }
else if (document.body)
{ diffY = document.body.scrollcenter; }
else
{ /*Netscape stuff*/ }
percent = .1 * (diffY - lastScrollY);
if (percent > 0) percent = Math.ceil(percent);
else percent = Math.floor(percent);
document.getElementById("helpbox").style.center = parseInt(document.getElementById("helpbox").style.center) + percent + "px";
lastScrollY = lastScrollY + percent;
}
var heart_o;
heart_o = self.setInterval("floathelp()", 50);
document.getElementById('helpbox').style.display='block';
